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Thinx is machine-washable and reusable period-absorbing underwear — providing a more sustainable alternative to single-use disposable products. Thinx underwear for periods is designed in a range of absorbencies, from lightest to super, to support every stage of your flow. Every pair of Thinx period-absorbing underwear features our signature, innovative built-in technology — a moisture-wicking top layer, an absorbent core layer, and an outermost leak-resistant barrier. Check out our How Thinx Work page to learn more.
Our absorbency levels range from lightest (1 regular tampon worth of flow) to Super (5 regular tampons worth of flow), so there is a style for every day of your cycle. We recommend trying Thinx period-absorbing underwear for the first time at home so you can see how they best work for your ~flow~. If you feel damp or notice your flow spreading to the seams, it may be time to change into a new pair. We recommend starting with 3-5 undies, so you’ll be covered for your entire cycle without doing extra laundry. We offer Saver Sets and discounts when you buy 3+ pairs so you can build your collection and get more for less $$$.
Across all absorbencies, the gusset positioning within the underwear varies by style. However, generally, the gusset sits under the entire front of the vulva, widened significantly at the front and rear for leak protection and with extra length in the back — covering the surface area necessary to absorb your flow and prevent leaks.
Thinx period-absorbing underwear handles blood clots similarly to a pad. Although the undies can't absorb the blood clot itself, they will absorb the surrounding moisture so you will not feel damp, wet, or uncomfortable.
Toxic Shock Syndrome (TSS) is associated primarily with tampon use. Thinx period-absorbing underwear is a safer alternative.
Thinx period-absorbing underwear is ultra-absorbent, odor-controlling, and moisture-wicking, designed to keep you fresh and dry. If your undies have not reached capacity, we recommend changing once daily, as you would regular underwear. Please note: if your period begins to smell different (unusually fishy), that might mean something is amiss down there, and it might be a good idea to check in with your doctor.
Our period-absorbing underwear is 100% latex-free! Our elastane is composed of a long chain polymer known as polyurethane, known in technical circles as a polyether-polyurea copolymer, used for having breathable and water-resistant qualities. Elastane is an entirely synthetic fabric; it does not exist anywhere in nature nor contain organic materials. So: no latex! However, a number of our styles do feature exposed elastic.
Yes! We don’t apply any perfume or fragrance to any of our materials. All of our products are fragrance-free!
Our absorbent underwear isn’t stain-proof, although the materials used in our absorbent gusset are largely stain-resistant. Thinx Inc. absorbent underwear is also lined in black to prevent stains from showing. To further prevent stains, follow the washing instructions on our How to Wash page.
Our period-absorbing underwear is composed of: Body of our Classic: 89% Nylon, 11% Elastane Body of Modal Cotton: 53% Supima Cotton, 35% Lenzing Micro Modal, 12% Elastane Body of Thinx air™️: 78% polyamide, 22% elastane Body of Thinx for All™: 95% cotton and 5% elastane Gusset for lightest to heavy absorbencies: 95% Cotton, 5% Elastane; middle breathable PUL Gusset for all super absorbencies: 100% polyester; middle breathable PUL For a further breakdown of the materials and fabrics used in our absorbent gussets, check out our Product Safety.
Thinx is machine-washable and reusable period-absorbing underwear — providing a more sustainable alternative to single-use disposable products. Thinx underwear for periods is designed in a range of absorbencies, from lightest to super, to support every stage of your flow. Every pair of Thinx period-absorbing underwear features our signature, innovative built-in technology — a moisture-wicking top layer, an absorbent core layer, and an outermost leak-resistant barrier. Check out our How Thinx Work page to learn more.
Our absorbency levels range from lightest (1 regular tampon worth of flow) to Super (5 regular tampons worth of flow), so there is a style for every day of your cycle. We recommend trying Thinx period-absorbing underwear for the first time at home so you can see how they best work for your ~flow~. If you feel damp or notice your flow spreading to the seams, it may be time to change into a new pair. We recommend starting with 3-5 undies, so you’ll be covered for your entire cycle without doing extra laundry. We offer Saver Sets and discounts when you buy 3+ pairs so you can build your collection and get more for less $$$.
Across all absorbencies, the gusset positioning within the underwear varies by style. However, generally, the gusset sits under the entire front of the vulva, widened significantly at the front and rear for leak protection and with extra length in the back — covering the surface area necessary to absorb your flow and prevent leaks.
Thinx period-absorbing underwear handles blood clots similarly to a pad. Although the undies can't absorb the blood clot itself, they will absorb the surrounding moisture so you will not feel damp, wet, or uncomfortable.
Toxic Shock Syndrome (TSS) is associated primarily with tampon use. Thinx period-absorbing underwear is a safer alternative.
Thinx period-absorbing underwear is ultra-absorbent, odor-controlling, and moisture-wicking, designed to keep you fresh and dry. If your undies have not reached capacity, we recommend changing once daily, as you would regular underwear. Please note: if your period begins to smell different (unusually fishy), that might mean something is amiss down there, and it might be a good idea to check in with your doctor.
Our period-absorbing underwear is 100% latex-free! Our elastane is composed of a long chain polymer known as polyurethane, known in technical circles as a polyether-polyurea copolymer, used for having breathable and water-resistant qualities. Elastane is an entirely synthetic fabric; it does not exist anywhere in nature nor contain organic materials. So: no latex! However, a number of our styles do feature exposed elastic.
Yes! We don’t apply any perfume or fragrance to any of our materials. All of our products are fragrance-free!
Our absorbent underwear isn’t stain-proof, although the materials used in our absorbent gusset are largely stain-resistant. Thinx Inc. absorbent underwear is also lined in black to prevent stains from showing. To further prevent stains, follow the washing instructions on our How to Wash page.
Our period-absorbing underwear is composed of: Body of our Classic: 89% Nylon, 11% Elastane Body of Modal Cotton: 53% Supima Cotton, 35% Lenzing Micro Modal, 12% Elastane Body of Thinx air™️: 78% polyamide, 22% elastane Body of Thinx for All™: 95% cotton and 5% elastane Gusset for lightest to heavy absorbencies: 95% Cotton, 5% Elastane; middle breathable PUL Gusset for all super absorbencies: 100% polyester; middle breathable PUL For a further breakdown of the materials and fabrics used in our absorbent gussets, check out our Product Safety.
We recommend following the hip measurement to find the most accurate size. Be sure to measure your hips at their widest point, derriere included! We recommend sizing up in underwear styles that fit below the natural waist. Check the fit details of each underwear style via our size chart. The underwear should fit snugly but not so tight that it becomes uncomfortable.
Our period underwear styles feature a range of absorbencies, from lightest (1 regular tampon worth of flow) to super (5 regular tampons worth of flow), so there is a pair for every phase of your flow! Our light and lightest absorbencies are great for end days and spotting. For some, our moderate absorbency styles can be a replacement, and for others, they can be a backup to tampons or menstrual cups on heavier days. Heavy and super styles replace other period products and are also great for overnight use! We recommend trying Thinx at home to see what works best for you. Read about building a unique Custom Saver Set for your flow, or take our Know Your Flow quiz. For the best styles for different activities, check out our blog.
Thinx air™ is period-absorbing underwear made with an ultra-thin, cooling, and sweat-wicking micromesh fabric that keeps you *extra* fresh and dry. (Pro tip: our undies are great for travel and sports!). Bonus: These hang dry 2x faster than our original undies — so, little downtime in-between washes. Learn more about Thinx air™️
In short, organic cotton typically refers to the method used to grow cotton. The cotton in our Modal Cotton fabric is specifically SUPIMA®️ cotton. It’s grown in the USA and constructed with higher quality raw materials, making it softer and more durable. TENCEL™️ Modal is a plant-based textile made from beech tree pulp, which is biodegradable. The resulting blend is an all-natural fabric. Learn more about Modal Cotton.
We used SUPIMA® cotton, sourced through the Better Cotton Initiative (BCI). BCI is a non-profit working towards improving global cotton production for the people who produce it and the environment it grows in. BCI owns and stewards the Better Cotton Standard System: a system that encompasses a diverse range of activities and stakeholders, including those in cotton production, through the supply chain to consumer-facing retailers and brands.
Our Modal Cotton collection is our most breathable, lightweight, and eco-friendly fabric yet, made with a fabric blend composed of TENCEL™ Modal and SUPIMA® Cotton. TENCEL™ Modal fibers originate from renewable raw material beech wood, sourced from sustainable forests, and are compostable and biodegradable. TENCEL™ Modal has a lower environmental impact than generic modal, using 3x less water and depleting 8x fewer fossil fuels. SUPIMA® Cotton is inherently softer and more luxurious than regular carded cotton and resists pilling and becomes softer over time. Our Modal Cotton period underwear styles also feature extended gussets in the front and back for extra leak coverage.
Our Modal Cotton collection is an excellent choice for those with sensitive skin. If you typically wear cotton, Modal Cotton should not irritate you, being that it is an all-natural fabric, and it should only get softer over time with washing. Another great choice would be our cotton Thinx for All™ collection.
Thinx for All is a curated collection of single-lined cotton underwear for periods in our most popular colors & absorbencies, to make period underwear more accessible for all. Thinx is our line of period underwear & apparel, available in exclusive silhouettes and premium fabrics like luxe mesh and Modal Cotton.
Thinx for All™ reflects our goal of giving more people access to better periods! To offer this period-absorbing underwear at a more accessible price point, we value-engineered a simple design with a single-lined cotton fabric body in a limited selection of styles, colors, and absorbencies.
Thinx for All™ features the same built-in period protection of Thinx that absorbs flow, wicks moisture, and prevents leaks, so you stay fresh, dry, and comfortable. We work with our same manufacturing partner to offer this line, so you can expect the same high-performance gusset as you would from Thinx!
At this time, Thinx period-absorbing underwear is not seamless. However, we recommend our Thinx air™️ collection for minimal underwear lines under tight clothing such as workout pants or leggings.
Saver Sets are curated bundles of our Thinx inc. absorbent underwear that can be purchased as one item. When you snag a Saver Set, you’re stocking up on your favorite styles *and* saving $$$. Saver Sets are not eligible for our Create a Set discounts. Underwear purchased in a Saver Set can be returned or exchanged individually or altogether.
Custom Saver Sets are a great way to build your collection and get more for less. Mix and match any styles, colors, and sizes across Thinx and Thinx for All Leaks Signature to take advantage of the following discounts: buy 4+ pairs and save 10%, buy 6+ pairs and save 15%, buy 8+ pairs and save 20%. This discount will apply automatically in your cart and only applies to full-price styles. You can return the items individually if they don’t work out.
We recommend following the hip measurement to find the most accurate size. Be sure to measure your hips at their widest point, derriere included! We recommend sizing up in underwear styles that fit below the natural waist. Check the fit details of each underwear style via our size chart. The underwear should fit snugly but not so tight that it becomes uncomfortable.
Our period underwear styles feature a range of absorbencies, from lightest (1 regular tampon worth of flow) to super (5 regular tampons worth of flow), so there is a pair for every phase of your flow! Our light and lightest absorbencies are great for end days and spotting. For some, our moderate absorbency styles can be a replacement, and for others, they can be a backup to tampons or menstrual cups on heavier days. Heavy and super styles replace other period products and are also great for overnight use! We recommend trying Thinx at home to see what works best for you. Read about building a unique Custom Saver Set for your flow, or take our Know Your Flow quiz. For the best styles for different activities, check out our blog.
Thinx air™ is period-absorbing underwear made with an ultra-thin, cooling, and sweat-wicking micromesh fabric that keeps you *extra* fresh and dry. (Pro tip: our undies are great for travel and sports!). Bonus: These hang dry 2x faster than our original undies — so, little downtime in-between washes. Learn more about Thinx air™️
In short, organic cotton typically refers to the method used to grow cotton. The cotton in our Modal Cotton fabric is specifically SUPIMA®️ cotton. It’s grown in the USA and constructed with higher quality raw materials, making it softer and more durable. TENCEL™️ Modal is a plant-based textile made from beech tree pulp, which is biodegradable. The resulting blend is an all-natural fabric. Learn more about Modal Cotton.
We used SUPIMA® cotton, sourced through the Better Cotton Initiative (BCI). BCI is a non-profit working towards improving global cotton production for the people who produce it and the environment it grows in. BCI owns and stewards the Better Cotton Standard System: a system that encompasses a diverse range of activities and stakeholders, including those in cotton production, through the supply chain to consumer-facing retailers and brands.
Our Modal Cotton collection is our most breathable, lightweight, and eco-friendly fabric yet, made with a fabric blend composed of TENCEL™ Modal and SUPIMA® Cotton. TENCEL™ Modal fibers originate from renewable raw material beech wood, sourced from sustainable forests, and are compostable and biodegradable. TENCEL™ Modal has a lower environmental impact than generic modal, using 3x less water and depleting 8x fewer fossil fuels. SUPIMA® Cotton is inherently softer and more luxurious than regular carded cotton and resists pilling and becomes softer over time. Our Modal Cotton period underwear styles also feature extended gussets in the front and back for extra leak coverage.
Our Modal Cotton collection is an excellent choice for those with sensitive skin. If you typically wear cotton, Modal Cotton should not irritate you, being that it is an all-natural fabric, and it should only get softer over time with washing. Another great choice would be our cotton Thinx for All™ collection.
Thinx for All is a curated collection of single-lined cotton underwear for periods in our most popular colors & absorbencies, to make period underwear more accessible for all. Thinx is our line of period underwear & apparel, available in exclusive silhouettes and premium fabrics like luxe mesh and Modal Cotton.
Thinx for All™ reflects our goal of giving more people access to better periods! To offer this period-absorbing underwear at a more accessible price point, we value-engineered a simple design with a single-lined cotton fabric body in a limited selection of styles, colors, and absorbencies.
Thinx for All™ features the same built-in period protection of Thinx that absorbs flow, wicks moisture, and prevents leaks, so you stay fresh, dry, and comfortable. We work with our same manufacturing partner to offer this line, so you can expect the same high-performance gusset as you would from Thinx!
At this time, Thinx period-absorbing underwear is not seamless. However, we recommend our Thinx air™️ collection for minimal underwear lines under tight clothing such as workout pants or leggings.
Saver Sets are curated bundles of our Thinx inc. absorbent underwear that can be purchased as one item. When you snag a Saver Set, you’re stocking up on your favorite styles *and* saving $$$. Saver Sets are not eligible for our Create a Set discounts. Underwear purchased in a Saver Set can be returned or exchanged individually or altogether.
Custom Saver Sets are a great way to build your collection and get more for less. Mix and match any styles, colors, and sizes across Thinx and Thinx for All Leaks Signature to take advantage of the following discounts: buy 4+ pairs and save 10%, buy 6+ pairs and save 15%, buy 8+ pairs and save 20%. This discount will apply automatically in your cart and only applies to full-price styles. You can return the items individually if they don’t work out.
Depending on your flow, Thinx can be a total replacement for disposable products, such as pads, tampons, liners, and cups. Our highest absorbency styles hold up to 5 tampons worth of flow. For most flows, Thinx can last all day! Others may choose to carry an extra pair of Thinx as a backup, just in case! If you're unsure which styles to start with, we recommend taking our Know Your Flow quiz.
Every flow is different! You can wear period-absorbing underwear for as long as your flow will allow. And of course, the style you wear also plays a factor, as some underwear styles are more absorbent than others. We measure our underwear for periods by absorbency, with our highest absorbency styles holding up to 5 tampons worth of flow. For some customers, they will last the whole day, and others may need to carry an extra pair of Thinx period underwear as a backup. If you feel damp or notice your flow spreading to the seams, that is an indicator you should change into a fresh pair. We suggest bringing along a resealable bag, pouch, or wet bag — so that if you do need to change out of your first pair of Thinx undies, you've got a place to put them. If you're unsure which styles to start with, we recommend taking our Know Your Flow quiz.
One way to tell that your period-absorbing underwear is full is if the side seam of the gusset feels wet. When you start to notice blood at the seams, this is a good indication that it's time to change pairs! We suggest bringing along a resealable bag, pouch, or wet bag — so that if you do need to change out of your first pair of Thinx undies, you've got a place to put them.
We recommend starting with 3-5 pairs, so you’re covered for your entire period without having to do extra laundry. We offer Saver Sets and Custom Set discounts so you can build your collection and get more for less. Take our Know Your Flow quiz to find which underwear styles work best for your flow!
Every pair of Thinx period-absorbing underwear features our signature, innovative built-in technology, so we advise against using a pad or liner since these products will cover the gusset and prevent Thinx from doing its job!
Yes, we even designed a sleep-specific product! Our Sleep Shorts are boxer-inspired pajama shorts that hold up to 5 regular tampons' worth of flow. We made the Sleep Shorts with an extended gusset to protect against overnight leaks and prevent stains. Other customer favorites for sleeping include our Super Hiphugger and Boyshort.
We have heard from parents in our community that they love wearing Thinx period-absorbing underwear postpartum! We identified the underwear styles in our collection as most suitable for this time. Thinx can provide leak protection you can trust through postpartum and when your period returns. For the best fit during postpartum, we recommend sizing up. Before using any new product, you should check with your doctor to see when our products can best work for you. Learn more about how new parents use Thinx for Postpartum.
To get the best use out of your Thinx, we don’t recommend wearing these undies as a swimsuit or underwater. The purpose is to keep you fresh and dry!
Our incontinence-focused underwear brand, Thinx for All Leaks, is specifically designed to absorb bladder leaks! Visit thinxforallleaks.com for more info.
Depending on your flow, Thinx can be a total replacement for disposable products, such as pads, tampons, liners, and cups. Our highest absorbency styles hold up to 5 tampons worth of flow. For most flows, Thinx can last all day! Others may choose to carry an extra pair of Thinx as a backup, just in case! If you're unsure which styles to start with, we recommend taking our Know Your Flow quiz.
Every flow is different! You can wear period-absorbing underwear for as long as your flow will allow. And of course, the style you wear also plays a factor, as some underwear styles are more absorbent than others. We measure our underwear for periods by absorbency, with our highest absorbency styles holding up to 5 tampons worth of flow. For some customers, they will last the whole day, and others may need to carry an extra pair of Thinx period underwear as a backup. If you feel damp or notice your flow spreading to the seams, that is an indicator you should change into a fresh pair. We suggest bringing along a resealable bag, pouch, or wet bag — so that if you do need to change out of your first pair of Thinx undies, you've got a place to put them. If you're unsure which styles to start with, we recommend taking our Know Your Flow quiz.
One way to tell that your period-absorbing underwear is full is if the side seam of the gusset feels wet. When you start to notice blood at the seams, this is a good indication that it's time to change pairs! We suggest bringing along a resealable bag, pouch, or wet bag — so that if you do need to change out of your first pair of Thinx undies, you've got a place to put them.
We recommend starting with 3-5 pairs, so you’re covered for your entire period without having to do extra laundry. We offer Saver Sets and Custom Set discounts so you can build your collection and get more for less. Take our Know Your Flow quiz to find which underwear styles work best for your flow!
Every pair of Thinx period-absorbing underwear features our signature, innovative built-in technology, so we advise against using a pad or liner since these products will cover the gusset and prevent Thinx from doing its job!
Yes, we even designed a sleep-specific product! Our Sleep Shorts are boxer-inspired pajama shorts that hold up to 5 regular tampons' worth of flow. We made the Sleep Shorts with an extended gusset to protect against overnight leaks and prevent stains. Other customer favorites for sleeping include our Super Hiphugger and Boyshort.
We have heard from parents in our community that they love wearing Thinx period-absorbing underwear postpartum! We identified the underwear styles in our collection as most suitable for this time. Thinx can provide leak protection you can trust through postpartum and when your period returns. For the best fit during postpartum, we recommend sizing up. Before using any new product, you should check with your doctor to see when our products can best work for you. Learn more about how new parents use Thinx for Postpartum.
To get the best use out of your Thinx, we don’t recommend wearing these undies as a swimsuit or underwater. The purpose is to keep you fresh and dry!
Our incontinence-focused underwear brand, Thinx for All Leaks, is specifically designed to absorb bladder leaks! Visit thinxforallleaks.com for more info.
Thinx is super simple to care for; wash before first wear and with the rest of your laundry after each use. Hand wash or machine wash cold on a delicate cycle. Your other clothes will be fine, we promise! Just make sure to steer clear of fabric softener and bleach! And last but not least, hang dry your undies.
Machine-wash your Thinx on cold. The standard cold wash is 60-80 degrees Fahrenheit (15C - 27C). If you're hand-washing, the water should feel close to room temperature.
Nope! Washing Thinx with your other laundry is perfectly hygienic, and your other clothes will be fine, we promise! Washing machines will dilute the blood almost immediately, and your other clothes will not stain if you're washing cold.
We discourage using fabric softener because it breaks down the fabrics in the center panel of the underwear and the bonding around the seams, which helps absorb and keep leaks in. Over time, fabric softener will make the underwear less absorbent.
The drying time of our period-absorbing underwear depends on the style — moderate absorbency styles shouldn’t take longer than 10-12 hours to dry, and super absorbency styles shouldn’t take longer than 19 hours to dry under non-humid conditions. Drying times may be affected by humidity levels and the airflow of the space you hang them in.
If your period-absorbing underwear accidentally goes through the dryer, don't stress! Thinx can take a tumble or two in a dryer without affecting their integrity. To prolong their lifespan, however, we recommend steering clear of the dryer for the most part. The heat from dryers or irons will hurt the elasticity of the underwear, which is what prevents leaks. Pro tip: use a mesh laundry bag to separate them from your other clothes, so you can easily take them out of the wash while putting your other clothes in the dryer!
Absorbed blood can build up in the gusset, which may cause an odor or affect the performance of your period-absorbing underwear. If your Thinx needs a little TLC, try a vinegar soak. Before washing your Thinx, soak them in the sink or a clean tub with one cup of white vinegar and some cold water. Leave them there for about 15 to 30 minutes, then throw them in the washing machine. You can also add a little white vinegar to the wash if you think they need it.
Thinx Inc. absorbent underwear will last at maximum tech performance for the industry standard of about 40 washes or approximately 2 years (or longer!) when cared for properly. Check out our How to Wash page for more information.
We know that some of our fibers do not decompose quickly into the soil — however, we’re proud to say that you *can* recycle our period underwear! Here’s how to do it:
Thinx is super simple to care for; wash before first wear and with the rest of your laundry after each use. Hand wash or machine wash cold on a delicate cycle. Your other clothes will be fine, we promise! Just make sure to steer clear of fabric softener and bleach! And last but not least, hang dry your undies.
Machine-wash your Thinx on cold. The standard cold wash is 60-80 degrees Fahrenheit (15C - 27C). If you're hand-washing, the water should feel close to room temperature.
Nope! Washing Thinx with your other laundry is perfectly hygienic, and your other clothes will be fine, we promise! Washing machines will dilute the blood almost immediately, and your other clothes will not stain if you're washing cold.
We discourage using fabric softener because it breaks down the fabrics in the center panel of the underwear and the bonding around the seams, which helps absorb and keep leaks in. Over time, fabric softener will make the underwear less absorbent.
The drying time of our period-absorbing underwear depends on the style — moderate absorbency styles shouldn’t take longer than 10-12 hours to dry, and super absorbency styles shouldn’t take longer than 19 hours to dry under non-humid conditions. Drying times may be affected by humidity levels and the airflow of the space you hang them in.
If your period-absorbing underwear accidentally goes through the dryer, don't stress! Thinx can take a tumble or two in a dryer without affecting their integrity. To prolong their lifespan, however, we recommend steering clear of the dryer for the most part. The heat from dryers or irons will hurt the elasticity of the underwear, which is what prevents leaks. Pro tip: use a mesh laundry bag to separate them from your other clothes, so you can easily take them out of the wash while putting your other clothes in the dryer!
Absorbed blood can build up in the gusset, which may cause an odor or affect the performance of your period-absorbing underwear. If your Thinx needs a little TLC, try a vinegar soak. Before washing your Thinx, soak them in the sink or a clean tub with one cup of white vinegar and some cold water. Leave them there for about 15 to 30 minutes, then throw them in the washing machine. You can also add a little white vinegar to the wash if you think they need it.
Thinx Inc. absorbent underwear will last at maximum tech performance for the industry standard of about 40 washes or approximately 2 years (or longer!) when cared for properly. Check out our How to Wash page for more information.
We know that some of our fibers do not decompose quickly into the soil — however, we’re proud to say that you *can* recycle our period underwear! Here’s how to do it:
Thinx is available for purchase on our website and at several select boutique stores. To shop Thinx in person, head over to our store locator to find a store near you. Our sibling brands, Thinx Teens period-absorbing underwear for teens, and Speax, underwear for bladder leaks, are currently only available on our website. Please note that we only accept returns or exchanges for purchases made through our site.
We accept nearly all local currencies, and they should automatically update based on your location! On the off chance that we do not offer your local currency, you'll have the option of checking out in USD, CAD, EUR, AUD, or British Pounds. Receipts and confirmation emails will show the purchase price in USD.
We accept all major credit cards, Flexible Spending Arrangement (FSA), Health Savings Account (HSA), and Health Reimbursement Arrangement (HRA) credit/debit cards, PayPal, Google Pay, AfterPay, and Thinx Inc. gift cards.
Yes — all Thinx inc. underwear, including our menstrual products and bladder leak underwear, can now be purchased directly at checkout and via PayPal using Flexible Spending Arrangement (FSA), Health Savings Account (HSA), and Health Reimbursement Arrangement (HRA) credit/debit cards. If you experience any issues with the card at checkout, please check your balance — if there are enough funds in your account, you may need to contact an administrator at your plan to authorize a purchase on our site. Afterpay and orders processed in currencies other than USD are not eligible. If you prefer to check out using another method, please review your plan for details about applying for reimbursement. Depending on your insurance plan, you may be required to fill out a claim form with an itemized receipt, so keep your order confirmation email handy.
While we do our best to ensure that our e-commerce experience is consistent, enjoyable, and functional across all modern browsers and devices, occasionally something small may not function properly on older browsers when an update to our code is pushed. If you are having trouble logging in, creating an account, or placing an order, we highly recommend you first update your browser to the newest version. Chrome | Firefox | Safari | Internet Explorer Or, simply trying another browser usually works (we prefer Chrome). We apologize for any inconvenience. If you still need help or are experiencing issues, please don't hesitate to contact us via our Help Center!
Yes! We offer free standard shipping to new US customers on their first order. New customers outside the US are offered free shipping on their first order with qualifying carts of $99 or more.
Our orders ship from our warehouse in Northampton, PA.
Yes! We ship to 29 countries around the world! Check our Shipping Info to see where we ship and view shipping rates.
Order fees include applicable local taxes, duties, and brokerage fees when shipping to the EU, UK, or Canada, though you will be charged VAT at checkout if shipping to the EU or UK. Our prices do not include local taxes, duties, brokerage fees, and VATs for all other countries—you can expect to be charged by the carrier upon arrival. Please make sure you consider all costs before placing an order.
Our team begins processing orders quickly (so you can get your undies fast!). So, we are unfortunately unable to make order edits or cancellations. If your order has already shipped, visit our Returns & Exchanges Center within 45 days if you need to swap anything out.
Orders are processed Mon-Fri, before 5 pm and are typically on their way to you within 1-2 business days. Estimated shipping time frames vary by country. Please review our Shipping Policy for more information.
You can track your order here. Please note that it typically takes 1-2 business days for orders to be processed, packed, and readied for shipment. As soon as our team has completed processing, you'll receive an email confirmation with tracking details so you can follow your order step by step. If you placed an order under an account, log in to see your tracking information. Once logged into your account, view the order history tab, and you will see all your previous and current orders and their tracking info.
We strive to make environmentally preferable choices that don’t compromise the integrity of the product that shows up on your doorstep. That means we choose paper and renewable resources as much as possible and work to minimize any plastic or non-renewable materials. Paper: All paper and boards are FSC-certified (both old and new packaging, including inserts and boxes). They are all recyclable and biodegradable! It will take approx. 2-3 months for this process. Polybag: Biodegradable. Strings: Not recyclable but can give to a textile recycler. 65% Polyester and 35% cotton. Mailer bag: Recyclable where plastic films are recyclable. Find a location here. We are currently researching how to use biodegradable and recyclable packaging with soy-based or similar inks, as our supply chain and safe handling requirements allow.
Thinx is available for purchase on our website and at several select boutique stores. To shop Thinx in person, head over to our store locator to find a store near you. Our sibling brands, Thinx Teens period-absorbing underwear for teens, and Speax, underwear for bladder leaks, are currently only available on our website. Please note that we only accept returns or exchanges for purchases made through our site.
We accept nearly all local currencies, and they should automatically update based on your location! On the off chance that we do not offer your local currency, you'll have the option of checking out in USD, CAD, EUR, AUD, or British Pounds. Receipts and confirmation emails will show the purchase price in USD.
We accept all major credit cards, Flexible Spending Arrangement (FSA), Health Savings Account (HSA), and Health Reimbursement Arrangement (HRA) credit/debit cards, PayPal, Google Pay, AfterPay, and Thinx Inc. gift cards.
Yes — all Thinx inc. underwear, including our menstrual products and bladder leak underwear, can now be purchased directly at checkout and via PayPal using Flexible Spending Arrangement (FSA), Health Savings Account (HSA), and Health Reimbursement Arrangement (HRA) credit/debit cards. If you experience any issues with the card at checkout, please check your balance — if there are enough funds in your account, you may need to contact an administrator at your plan to authorize a purchase on our site. Afterpay and orders processed in currencies other than USD are not eligible. If you prefer to check out using another method, please review your plan for details about applying for reimbursement. Depending on your insurance plan, you may be required to fill out a claim form with an itemized receipt, so keep your order confirmation email handy.
While we do our best to ensure that our e-commerce experience is consistent, enjoyable, and functional across all modern browsers and devices, occasionally something small may not function properly on older browsers when an update to our code is pushed. If you are having trouble logging in, creating an account, or placing an order, we highly recommend you first update your browser to the newest version. Chrome | Firefox | Safari | Internet Explorer Or, simply trying another browser usually works (we prefer Chrome). We apologize for any inconvenience. If you still need help or are experiencing issues, please don't hesitate to contact us via our Help Center!
Yes! We offer free standard shipping to new US customers on their first order. New customers outside the US are offered free shipping on their first order with qualifying carts of $99 or more.
Our orders ship from our warehouse in Northampton, PA.
Yes! We ship to 29 countries around the world! Check our Shipping Info to see where we ship and view shipping rates.
Order fees include applicable local taxes, duties, and brokerage fees when shipping to the EU, UK, or Canada, though you will be charged VAT at checkout if shipping to the EU or UK. Our prices do not include local taxes, duties, brokerage fees, and VATs for all other countries—you can expect to be charged by the carrier upon arrival. Please make sure you consider all costs before placing an order.
Our team begins processing orders quickly (so you can get your undies fast!). So, we are unfortunately unable to make order edits or cancellations. If your order has already shipped, visit our Returns & Exchanges Center within 45 days if you need to swap anything out.
Orders are processed Mon-Fri, before 5 pm and are typically on their way to you within 1-2 business days. Estimated shipping time frames vary by country. Please review our Shipping Policy for more information.
You can track your order here. Please note that it typically takes 1-2 business days for orders to be processed, packed, and readied for shipment. As soon as our team has completed processing, you'll receive an email confirmation with tracking details so you can follow your order step by step. If you placed an order under an account, log in to see your tracking information. Once logged into your account, view the order history tab, and you will see all your previous and current orders and their tracking info.
We strive to make environmentally preferable choices that don’t compromise the integrity of the product that shows up on your doorstep. That means we choose paper and renewable resources as much as possible and work to minimize any plastic or non-renewable materials. Paper: All paper and boards are FSC-certified (both old and new packaging, including inserts and boxes). They are all recyclable and biodegradable! It will take approx. 2-3 months for this process. Polybag: Biodegradable. Strings: Not recyclable but can give to a textile recycler. 65% Polyester and 35% cotton. Mailer bag: Recyclable where plastic films are recyclable. Find a location here. We are currently researching how to use biodegradable and recyclable packaging with soy-based or similar inks, as our supply chain and safe handling requirements allow.
We process return orders within 1-2 business days. Once processed, US exchange orders are shipped via standard shipping and should arrive within 5-7 business days. International exchange orders are shipped via UPS Worldwide Expedited DDP.
The process for exchanging for a different underwear size/color and returning for a refund to either a digital gift card or the original payment will be the same. If you are outside the US and looking to exchange for another style, you will choose the option of store credit during the return process and can then repurchase the item you want with the credit you are issued.
Items can be exchanged for any other product(s) of equal or lesser value, digital gift cards, or refunded to your original payment method. You can view detailed instructions on our Return & Exchange page by selecting the refund or exchange action desired.
45 days or less. After 45 days, the items will be unavailable to be returned or exchanged in the portal.
Yes, Thinx Inc. items purchased in a Saver Set or Custom Set are eligible for return or exchange individually or all together. You can process a return or exchange directly through our online Returns Portal.
In this case, we suggest returning the original item for a digital gift card. Sign up for back-in-stock alerts for your desired exchange item via the product page, so you'll be notified when the item becomes available for purchase again.
Sorry, that option isn’t available right now!
Nope, gift cards never expire and can be applied to any purchase from our Thinx Inc. family of brands (Thinx for All Leaks, Thinx, and Thinx Teens™)!
All you need is the digital gift card number to use your credit. How you choose to use your credit or whether you choose to give your digital gift card number to a friend is up to you!
We process return orders within 1-2 business days. Once processed, US exchange orders are shipped via standard shipping and should arrive within 5-7 business days. International exchange orders are shipped via UPS Worldwide Expedited DDP.
The process for exchanging for a different underwear size/color and returning for a refund to either a digital gift card or the original payment will be the same. If you are outside the US and looking to exchange for another style, you will choose the option of store credit during the return process and can then repurchase the item you want with the credit you are issued.
Items can be exchanged for any other product(s) of equal or lesser value, digital gift cards, or refunded to your original payment method. You can view detailed instructions on our Return & Exchange page by selecting the refund or exchange action desired.
45 days or less. After 45 days, the items will be unavailable to be returned or exchanged in the portal.
Yes, Thinx Inc. items purchased in a Saver Set or Custom Set are eligible for return or exchange individually or all together. You can process a return or exchange directly through our online Returns Portal.
In this case, we suggest returning the original item for a digital gift card. Sign up for back-in-stock alerts for your desired exchange item via the product page, so you'll be notified when the item becomes available for purchase again.
Sorry, that option isn’t available right now!
Nope, gift cards never expire and can be applied to any purchase from our Thinx Inc. family of brands (Thinx for All Leaks, Thinx, and Thinx Teens™)!
All you need is the digital gift card number to use your credit. How you choose to use your credit or whether you choose to give your digital gift card number to a friend is up to you!
We aim to create underwear that champions and supports bodies throughout different stages of life. From your first period to post-menopause and all the leaks in between. We aim to empower our customers with sustainable solutions while breaking taboos around bladder leaks and menstruation.
We craft our underwear carefully and consciously, from sustainable manufacturing processes to ethical working conditions. We’re proud to work with MAS, a global leader in ethical manufacturing based in Sri Lanka. MAS operates under three pillars: products changed for good, our planet changed for good, and lives changed for good. Visit our Manufacturing page to learn more about how we make our underwear and the incredible people who make them!
Since day one, giving back to our community has been at the core of our mission. We're committed to paying it forward through our giveback programs and initiatives. When you purchase Thinx products, you're supporting our mission to empower *every body* through advocating for sustainable, scalable solutions to ending period poverty — learn more about GiveRise. In addition, we're honored to team up with organizations doing incredible work as our quarterly cart donation partners. Past partners have included The Trevor Project, the Black Mamas Matter Alliance, the Chicago Period Project, and others.
We aim to create underwear that champions and supports bodies throughout different stages of life. From your first period to post-menopause and all the leaks in between. We aim to empower our customers with sustainable solutions while breaking taboos around bladder leaks and menstruation.
We craft our underwear carefully and consciously, from sustainable manufacturing processes to ethical working conditions. We’re proud to work with MAS, a global leader in ethical manufacturing based in Sri Lanka. MAS operates under three pillars: products changed for good, our planet changed for good, and lives changed for good. Visit our Manufacturing page to learn more about how we make our underwear and the incredible people who make them!
Since day one, giving back to our community has been at the core of our mission. We're committed to paying it forward through our giveback programs and initiatives. When you purchase Thinx products, you're supporting our mission to empower *every body* through advocating for sustainable, scalable solutions to ending period poverty — learn more about GiveRise. In addition, we're honored to team up with organizations doing incredible work as our quarterly cart donation partners. Past partners have included The Trevor Project, the Black Mamas Matter Alliance, the Chicago Period Project, and others.
Thinx Inc. is our parent company! Together our family of brands (Thinx for All Leaks, Thinx, and Thinx Teens™) is committed to empowering *every body* with innovative solutions and social change.
Thinx Teens™ are machine-washable, reusable period-absorbing underwear for teens. Each pair is moisture-wicking, ultra-absorbent, and leak-resistant. Best of all, they come in full-coverage underwear styles and fun colors that fit teen bodies!
Thinx Teens™ are period-absorbing underwear made for teen body shapes and sizes. We designed Thinx underwear for periods for adult bodies (people who have already finished puberty), made with taller, curvier adult bodies in mind. Use our handy size chart to toggle between the brands to find the best underwear size for you. We recommend following the hip measurement, as most of our underwear styles sit on the hips. Be sure to measure the hips at their widest point, derriere included!
Thinx period-absorbing underwear comes in a range of absorbencies, from 1 to 5 regular tampons worth, so those who know their flow can decide which underwear styles work best. All Thinx Teens™ underwear styles come in our super absorbency and hold up to 5 tampons (or 2.5 regular pads) to better support young people who have inconsistent and uneven first and early periods. They’ve got your back through long school days, sports practices, club meetings, and beyond — worry-free!
Thinx Teens is period underwear designed for teen body shapes and sizes. All Thinx Teens styles are full-coverage and super absorbent to support first and early periods, which can be inconsistent. They're a simple and easy way to transition into using period products. Thinx, our period underwear for adults, offers a range of styles made with taller, curvier adult bodies in mind. Thinx absorbencies range from lightest to super for folks familiar with their flow, so they can select pairs for each stage of their unique cycle.
Thinx for All Leaks is washable and reusable underwear for bladder leaks — giving you a more sustainable alternative to single-use disposable products. Thinx for All Leaks features three layers of absorbent technology in the gusset: an innermost layer of moisture-wicking cotton, an ultra-absorbent inner lining, and an outermost layer that acts as a leak-resistant barrier. Learn more about our underwear for bladder leaks and how they work.
While the 3-layer tech that makes these products absorbent is similar, the specific makeup and composition of the layers differ between Thinx and Thinx for All Leaks to account for the differences in pH and viscosity between period flow and bladder leaks.
We specifically designed Thinx for All Leaks to tackle the pH and viscosity of bladder leaks, which is lower than that of menstrual flow. If you experience light incontinence and your period, Thinx for All Leaks would be your best bet to prevent all your leaks. We don't recommend using our period underwear to protect against bladder leaks.
The construction of Thinx for All Leaks underwear for bladder leaks differs from Thinx, as do the underwear styles, so sizing is a bit different. Thinx includes industry-standard plus-sizing through 4X, while Thinx for All Leaks sizes extend to 5XL. We recommend following the hip measurement for both brands to find the most accurate size for you, as most of our underwear styles sit on the hips.
You deserve period products that give you the comfort physically, mentally, and emotionally. All underwear in the Thinx family of brands is certified based on the rigorous chemical safety requirements of the STANDARD 100 by OEKO-TEX® [20.HUS.04850 | HOHENSTEIN HTTI] and complies with even more stringent OEKO-TEX® 100 Class II, Annexure IV, which includes meeting the requirements for Europe’s Regulation for Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) [20.HUS.04850 | HOHENSTEIN HTTI]. We also test our finished products through an accredited, globally recognized third-party laboratory to ensure they are compliant with U.S. and international regulations. These tests also include absorbency capacity, usability, and wearability testing. Thinx is a member of the Apparel and Footwear International RSL Management Group (AFIRM) and follows the AFIRM restricted substances list (RSL) for suppliers of raw materials. We also require suppliers of our raw materials to sign a Supplier Code of Conduct and Chemical Supplier Agreement confirming compliance with the AFIRM RSL including the AFIRM restrictions on PFAS.
Check out our Careers page.
Thinx Inc. is our parent company! Together our family of brands (Thinx for All Leaks, Thinx, and Thinx Teens™) is committed to empowering *every body* with innovative solutions and social change.
Thinx Teens™ are machine-washable, reusable period-absorbing underwear for teens. Each pair is moisture-wicking, ultra-absorbent, and leak-resistant. Best of all, they come in full-coverage underwear styles and fun colors that fit teen bodies!
Thinx Teens™ are period-absorbing underwear made for teen body shapes and sizes. We designed Thinx underwear for periods for adult bodies (people who have already finished puberty), made with taller, curvier adult bodies in mind. Use our handy size chart to toggle between the brands to find the best underwear size for you. We recommend following the hip measurement, as most of our underwear styles sit on the hips. Be sure to measure the hips at their widest point, derriere included!
Thinx period-absorbing underwear comes in a range of absorbencies, from 1 to 5 regular tampons worth, so those who know their flow can decide which underwear styles work best. All Thinx Teens™ underwear styles come in our super absorbency and hold up to 5 tampons (or 2.5 regular pads) to better support young people who have inconsistent and uneven first and early periods. They’ve got your back through long school days, sports practices, club meetings, and beyond — worry-free!
Thinx Teens is period underwear designed for teen body shapes and sizes. All Thinx Teens styles are full-coverage and super absorbent to support first and early periods, which can be inconsistent. They're a simple and easy way to transition into using period products. Thinx, our period underwear for adults, offers a range of styles made with taller, curvier adult bodies in mind. Thinx absorbencies range from lightest to super for folks familiar with their flow, so they can select pairs for each stage of their unique cycle.
Thinx for All Leaks is washable and reusable underwear for bladder leaks — giving you a more sustainable alternative to single-use disposable products. Thinx for All Leaks features three layers of absorbent technology in the gusset: an innermost layer of moisture-wicking cotton, an ultra-absorbent inner lining, and an outermost layer that acts as a leak-resistant barrier. Learn more about our underwear for bladder leaks and how they work.
While the 3-layer tech that makes these products absorbent is similar, the specific makeup and composition of the layers differ between Thinx and Thinx for All Leaks to account for the differences in pH and viscosity between period flow and bladder leaks.
We specifically designed Thinx for All Leaks to tackle the pH and viscosity of bladder leaks, which is lower than that of menstrual flow. If you experience light incontinence and your period, Thinx for All Leaks would be your best bet to prevent all your leaks. We don't recommend using our period underwear to protect against bladder leaks.
The construction of Thinx for All Leaks underwear for bladder leaks differs from Thinx, as do the underwear styles, so sizing is a bit different. Thinx includes industry-standard plus-sizing through 4X, while Thinx for All Leaks sizes extend to 5XL. We recommend following the hip measurement for both brands to find the most accurate size for you, as most of our underwear styles sit on the hips.
You deserve period products that give you the comfort physically, mentally, and emotionally. All underwear in the Thinx family of brands is certified based on the rigorous chemical safety requirements of the STANDARD 100 by OEKO-TEX® [20.HUS.04850 | HOHENSTEIN HTTI] and complies with even more stringent OEKO-TEX® 100 Class II, Annexure IV, which includes meeting the requirements for Europe’s Regulation for Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) [20.HUS.04850 | HOHENSTEIN HTTI]. We also test our finished products through an accredited, globally recognized third-party laboratory to ensure they are compliant with U.S. and international regulations. These tests also include absorbency capacity, usability, and wearability testing. Thinx is a member of the Apparel and Footwear International RSL Management Group (AFIRM) and follows the AFIRM restricted substances list (RSL) for suppliers of raw materials. We also require suppliers of our raw materials to sign a Supplier Code of Conduct and Chemical Supplier Agreement confirming compliance with the AFIRM RSL including the AFIRM restrictions on PFAS.
Check out our Careers page.
Once a month, your body prepares for one egg to be fertilized. During this time, the lining of your uterus thickens around the egg. When you don’t become pregnant, your body sheds the built-up lining of the uterus that was prepared for the egg to be fertilized and releases the unfertilized egg. Menstrual blood and tissue flow from the uterus through the cervix and out of the body through the vagina. To learn more, check out our blog.
Your period is one phase of your menstrual cycle which typically lasts 21-45 days. The ~flow~ of blood and tissue you experience (aka your period!) happens about halfway through that cycle, roughly once a month and lasting, on average, 3 to 7 days. For more information on irregular periods, check out our blog.
The amount of blood that comes out of the cervix each month varies, but it can be anywhere from 4 tsp to 1 cup.
There are quite a few factors that can influence the color of your period blood, including your diet, hormone levels, and even stress. Check out our blog for the download on each shade of your flow.
PMS, or premenstrual syndrome, is often defined by the physical and emotional symptoms you may feel before you get your period. The fluctuation of estrogen and progesterone hormones is responsible for symptoms such as cramps, bloating, sore boobs, fatigue, moodiness, breakouts, diarrhea, nausea, headaches, irritability, mood swings, food cravings, anxiety, and more (fun, we know!). PMS symptoms often show up a few days before your flow begins and can function as helpful signs to let you know when to keep your period undies on hand!
Once a month, your body prepares for one egg to be fertilized. During this time, the lining of your uterus thickens around the egg. When you don’t become pregnant, your body sheds the built-up lining of the uterus that was prepared for the egg to be fertilized and releases the unfertilized egg. Menstrual blood and tissue flow from the uterus through the cervix and out of the body through the vagina. To learn more, check out our blog.
Your period is one phase of your menstrual cycle which typically lasts 21-45 days. The ~flow~ of blood and tissue you experience (aka your period!) happens about halfway through that cycle, roughly once a month and lasting, on average, 3 to 7 days. For more information on irregular periods, check out our blog.
The amount of blood that comes out of the cervix each month varies, but it can be anywhere from 4 tsp to 1 cup.
There are quite a few factors that can influence the color of your period blood, including your diet, hormone levels, and even stress. Check out our blog for the download on each shade of your flow.
PMS, or premenstrual syndrome, is often defined by the physical and emotional symptoms you may feel before you get your period. The fluctuation of estrogen and progesterone hormones is responsible for symptoms such as cramps, bloating, sore boobs, fatigue, moodiness, breakouts, diarrhea, nausea, headaches, irritability, mood swings, food cravings, anxiety, and more (fun, we know!). PMS symptoms often show up a few days before your flow begins and can function as helpful signs to let you know when to keep your period undies on hand!
With Afterpay, you can buy now and pay for your order in 4 equal payments made every two weeks — no interest added.
To be eligible for Afterpay, the value of your cart must be between $35 and $1,000. Gift cards are not eligible. Afterpay payments are due in 4 equal installments every two weeks, automatically processed to the card you register on file. The first installment is due at the time of purchase.After adding products to your cart, select Afterpay as your payment method at checkout. If this is your first time using Afterpay, you'll be redirected to their website to register and provide your payment details. If you've used Afterpay before, you'll log in to your account to complete your order.
You can use Afterpay toward any Thinx Inc. purchase of period and bladder leak underwear. Gift cards are not eligible.
Unfortunately, no — Afterpay is only available to customers in the US.
With Afterpay, you make your first payment at the time of purchase. The remaining amount due will be deducted automatically in three equal installments every two weeks from the payment method you've set up. If you want to make a payment before your next installment is due, log in to your Afterpay account — any remaining amount still owed will be updated accordingly.
Late fees may apply if you cannot make a payment. Take a look at Afterpay's complete terms and conditions for more details.
Afterpay orders are processed just like any other US standard shipping order. Once confirmed, orders typically ship out in about 1-2 business days. US standard shipping should arrive within 5-7 business days. For more information, check out our shipping details.
Afterpay will determine your spending limit and can approve or deny purchases based on payment history.
You can also use a gift card with Afterpay to pay for your purchase.
All Thinx Inc. underwear and apparel are eligible for purchase using Afterpay at checkout. Thinx Inc. gift cards are not eligible.
We offer a 45-day money-back guarantee on all purchases, including Afterpay. In this case, the original form of payment, Afterpay, is refunded. When you return item/s from an order, Afterpay will deduct the item amounts from the purchase total and adjust any remaining installments accordingly. In the case of complete order returns, Afterpay will refund any payments already made towards the total purchase and change any remaining installments to $0.
Visit Afterpay for additional information and answers to your questions.
With Afterpay, you can buy now and pay for your order in 4 equal payments made every two weeks — no interest added.
To be eligible for Afterpay, the value of your cart must be between $35 and $1,000. Gift cards are not eligible. Afterpay payments are due in 4 equal installments every two weeks, automatically processed to the card you register on file. The first installment is due at the time of purchase.After adding products to your cart, select Afterpay as your payment method at checkout. If this is your first time using Afterpay, you'll be redirected to their website to register and provide your payment details. If you've used Afterpay before, you'll log in to your account to complete your order.
You can use Afterpay toward any Thinx Inc. purchase of period and bladder leak underwear. Gift cards are not eligible.
Unfortunately, no — Afterpay is only available to customers in the US.
With Afterpay, you make your first payment at the time of purchase. The remaining amount due will be deducted automatically in three equal installments every two weeks from the payment method you've set up. If you want to make a payment before your next installment is due, log in to your Afterpay account — any remaining amount still owed will be updated accordingly.
Late fees may apply if you cannot make a payment. Take a look at Afterpay's complete terms and conditions for more details.
Afterpay orders are processed just like any other US standard shipping order. Once confirmed, orders typically ship out in about 1-2 business days. US standard shipping should arrive within 5-7 business days. For more information, check out our shipping details.
Afterpay will determine your spending limit and can approve or deny purchases based on payment history.
You can also use a gift card with Afterpay to pay for your purchase.
All Thinx Inc. underwear and apparel are eligible for purchase using Afterpay at checkout. Thinx Inc. gift cards are not eligible.
We offer a 45-day money-back guarantee on all purchases, including Afterpay. In this case, the original form of payment, Afterpay, is refunded. When you return item/s from an order, Afterpay will deduct the item amounts from the purchase total and adjust any remaining installments accordingly. In the case of complete order returns, Afterpay will refund any payments already made towards the total purchase and change any remaining installments to $0.
Visit Afterpay for additional information and answers to your questions.
Our referral program is one way for you to spread the Thinx Inc. love! If you refer a friend, they get $10 to spend on any Thinx Inc. product (Thinx for All Leaks, Thinx, or Thinx Teens™). If they make a purchase, you also get $10 in credits. You can earn up to $500 in Thinx inc. credit by referring up to 50 friends. To get started, sign up or log in to your account. Share your unique referral link directly or through email, SMS, WhatsApp, or Facebook!
Yes — you can earn up to $500 in Thinx inc. credit by referring up to 50 friends. After that, your friends who are new customers will keep receiving $10 promo codes but you will not accrue any more credits on your account.
For every new customer, you refer, you will earn a $10 credit to apply toward any Thinx Inc. purchase (Thinx for All Leaks, Thinx, or Thinx Teens™). So, if you refer three new customers, you'll have $30 to spend. You can use your credits all at once or split your credits across orders until you use all credits.
With each referral, you earn ten credits, which is the equivalent of $10! One credit = $1.
No, credits are calculated in USD and not converted to other currencies due to limitations with our partner, FriendBuy. If you select your local currency from the currency dropdown, the prices onsite will be reflected in that currency, but your credits will be USD.
You can only refer new customers.
No, you can refer as many people as you want, so refer away!
Our third-party partner, FriendBuy, which enables our referral program, is accepted in most countries, except for Ivory Coast, Togo, Ghana, Nigeria, China, Hong Kong, Philippines, and Russia — where FriendBuy is blocked. If you reside in one of these countries, you are unfortunately ineligible to refer or be referred by others. We're sorry about the inconvenience!
If you’re referring a friend, your $10 in credits are unlocked in one week (after they make a purchase) as long as the order isn't canceled. If you're a new customer referred by a friend, you can use your referral code immediately to get $10 off your first order of $35 or more.
Unfortunately, if your referral cancels their order, you won’t receive the $10 credit.
Yep! At checkout, you can decide how many credits you want to apply to your order. You can apply them all at once or just use some of them and save the rest for later.
Yes! You can use credits toward any Thinx Inc. product (Thinx for All Leaks, Thinx, or Thinx Teens™), including merch!
You can view your earned, pending, and redeemed credits by visiting the Referral Dashboard tab on your account page. If you are the referrer, your credits will be unlocked after one week — unless the person you referred to has canceled their order.
No, credits don’t expire!
If you are the referrer, you can stack your referral credits with up to one discount code and use an unlimited amount of gift cards. If you are the referee, your code is not stackable with other promo codes.
Our referral program is one way for you to spread the Thinx Inc. love! If you refer a friend, they get $10 to spend on any Thinx Inc. product (Thinx for All Leaks, Thinx, or Thinx Teens™). If they make a purchase, you also get $10 in credits. You can earn up to $500 in Thinx inc. credit by referring up to 50 friends. To get started, sign up or log in to your account. Share your unique referral link directly or through email, SMS, WhatsApp, or Facebook!
Yes — you can earn up to $500 in Thinx inc. credit by referring up to 50 friends. After that, your friends who are new customers will keep receiving $10 promo codes but you will not accrue any more credits on your account.
For every new customer, you refer, you will earn a $10 credit to apply toward any Thinx Inc. purchase (Thinx for All Leaks, Thinx, or Thinx Teens™). So, if you refer three new customers, you'll have $30 to spend. You can use your credits all at once or split your credits across orders until you use all credits.
With each referral, you earn ten credits, which is the equivalent of $10! One credit = $1.
No, credits are calculated in USD and not converted to other currencies due to limitations with our partner, FriendBuy. If you select your local currency from the currency dropdown, the prices onsite will be reflected in that currency, but your credits will be USD.
You can only refer new customers.
No, you can refer as many people as you want, so refer away!
Our third-party partner, FriendBuy, which enables our referral program, is accepted in most countries, except for Ivory Coast, Togo, Ghana, Nigeria, China, Hong Kong, Philippines, and Russia — where FriendBuy is blocked. If you reside in one of these countries, you are unfortunately ineligible to refer or be referred by others. We're sorry about the inconvenience!
If you’re referring a friend, your $10 in credits are unlocked in one week (after they make a purchase) as long as the order isn't canceled. If you're a new customer referred by a friend, you can use your referral code immediately to get $10 off your first order of $35 or more.
Unfortunately, if your referral cancels their order, you won’t receive the $10 credit.
Yep! At checkout, you can decide how many credits you want to apply to your order. You can apply them all at once or just use some of them and save the rest for later.
Yes! You can use credits toward any Thinx Inc. product (Thinx for All Leaks, Thinx, or Thinx Teens™), including merch!
You can view your earned, pending, and redeemed credits by visiting the Referral Dashboard tab on your account page. If you are the referrer, your credits will be unlocked after one week — unless the person you referred to has canceled their order.
No, credits don’t expire!
If you are the referrer, you can stack your referral credits with up to one discount code and use an unlimited amount of gift cards. If you are the referee, your code is not stackable with other promo codes.
Thanks for your interest in selling our products! Unfortunately, we’re not accepting any new wholesale accounts at this time. To be notified, should anything change in the future, fill out our wholesale inquiry form.
Yes, we have both! To partner with us, apply with our Thinx Affiliate Program via Pepperjam. Affiliates are mainly self-sufficient and promote Thinx on their platforms, with minimal effort to participate. If you love talking about Thinx and all things menstruation as much as we do, join our community by becoming a Thinx Leader! Leaders are engaged members of our community and true advocates of our brand who use their platforms and resources for content creation and have a two-way relationship with the Thinx team.
Leaders are our most dedicated Thinx users and community members who are committed to sharing the innovation of Thinx, Inc. They’re content creators, community leaders, taboo busters, moms, sustainability warriors, healthcare professionals, and students, preferably with an online presence. If not, we’d love to hear about your offline communities, too!
Leaders receive personalized links to share with their audience across social media channels when they participate in Leader Program campaigns — we will provide social media guidelines and an onboarding kit once you join!
To get started, visit our Leaders Page and fill out your details. Someone on our team will reach out to share more about the program with you and take it from there.
All Leaders make commission on every order that comes in through them. The $$$ is a sliding scale, depending on your sales volume.
Nothing!
Nope! We will send you samples if you request. We suggest sending all your prospective buyers to your personalized URL.
We don’t dictate how often you post. You can post about us as much as you’d like on your schedule! We suggest at least one post per month, preferably on Instagram Stories (or other linkable content forms, like a Youtube video or blog post), so that your audience is familiar with the Thinx brand.
You can turn this opportunity into a side hustle! Some Leaders make a hundred dollars a month, while some Leaders make 10x that or more. It depends on what you put out and how often.
Thanks for your interest in selling our products! Unfortunately, we’re not accepting any new wholesale accounts at this time. To be notified, should anything change in the future, fill out our wholesale inquiry form.
Yes, we have both! To partner with us, apply with our Thinx Affiliate Program via Pepperjam. Affiliates are mainly self-sufficient and promote Thinx on their platforms, with minimal effort to participate. If you love talking about Thinx and all things menstruation as much as we do, join our community by becoming a Thinx Leader! Leaders are engaged members of our community and true advocates of our brand who use their platforms and resources for content creation and have a two-way relationship with the Thinx team.
Leaders are our most dedicated Thinx users and community members who are committed to sharing the innovation of Thinx, Inc. They’re content creators, community leaders, taboo busters, moms, sustainability warriors, healthcare professionals, and students, preferably with an online presence. If not, we’d love to hear about your offline communities, too!
Leaders receive personalized links to share with their audience across social media channels when they participate in Leader Program campaigns — we will provide social media guidelines and an onboarding kit once you join!
To get started, visit our Leaders Page and fill out your details. Someone on our team will reach out to share more about the program with you and take it from there.
All Leaders make commission on every order that comes in through them. The $$$ is a sliding scale, depending on your sales volume.
Nothing!
Nope! We will send you samples if you request. We suggest sending all your prospective buyers to your personalized URL.
We don’t dictate how often you post. You can post about us as much as you’d like on your schedule! We suggest at least one post per month, preferably on Instagram Stories (or other linkable content forms, like a Youtube video or blog post), so that your audience is familiar with the Thinx brand.
You can turn this opportunity into a side hustle! Some Leaders make a hundred dollars a month, while some Leaders make 10x that or more. It depends on what you put out and how often.
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