Leaks (even on your heavy days) don’t stand a chance against our Starter Set, featuring 2 pairs of our Super Hi-Waist and 1 pair of our Heavy Hi-Waist.
fit
This style features a high-rise, supportive fit with a leak-fighting center panel that extends through the back of the underwear. Heavy Hi-Waist and Super Hi-Waist both fit true to size.
Feeling bloated? Throw these on for comfy, soothing support around your midsection.
fabric
Super Hi-Waist
body: 84% polyamide, 16% elastane
mesh panels: 79% polyamide, 21% elastane
body liner: 95% cotton, 5% elastane
gusset 1 (wicking): 100% polyester
gusset 2 (absorbent): 100% polyester
gusset 3 (barrier): 100% polyester, coated w/ breathable PU
polyester, polyurethane, Agion®, Lava XL-N®
Heavy Hi-Waist
body: 84% polyamide, 16% elastane
mesh panels: 79% polyamide, 21% elastane
body liner: 95% cotton, 5% elastane
gusset 1 (wicking): 95% cotton, 5% elastane
gusset 2 (absorbent): 96% cotton, 4% elastane
gusset 3 (barrier): 100% polyester, coated w/ breathable PU
Our underwear is certified according to STANDARD 100 by OEKO-TEX:registered: [20.HUS.04850 | HOHENSTEIN HTTI]
care instructions
Wash before wearing. Hand wash or machine wash cold on a delicate cycle. Do not use bleach or fabric softener. Hang dry — no ironing please!
Saver Sets
Our Sets are curated *just for you* with our best-selling premium styles for cycle-long protection — at a discounted price.
I got this in preparation for postpartum and I'm loving it. Enough pairs to have ongoing protection and they are so comfy! They're cute and I don't feel like I'm wearing a diaper, even though they are super absorbent.
Ali from Yardley, PA, moderate to very heavy flow
how our period underwear works
find your style
Tell us a li'l bit about your flow, and we'll match you with the right pair!
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 absorbent styles hold from 1 regular tampon worth of flow to 5 regular tampons worth, so there is a style right for each day of your cycle. We recommend trying Thinx period-absorbing underwear for the first time at home to see how each underwear style works with your ~flow~.
Every flow is different! You can wear Thinx underwear for periods for as long as your flow allows. The absorbency style also plays a factor, as some underwear styles are more absorbent than others.
Our sustainable period underwear is super easy to care for. Machine wash the undies with the rest of your laundry on a cold cycle before first wear and after each use. Steer clear of fabric softener and bleach. Hang dry to keep your undies at maximum performance. Do not iron.
We typically 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.
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 absorbent styles hold from 1 regular tampon worth of flow to 5 regular tampons worth, so there is a style right for each day of your cycle. We recommend trying Thinx period-absorbing underwear for the first time at home to see how each underwear style works with your ~flow~.
Every flow is different! You can wear Thinx underwear for periods for as long as your flow allows. The absorbency style also plays a factor, as some underwear styles are more absorbent than others.
Our sustainable period underwear is super easy to care for. Machine wash the undies with the rest of your laundry on a cold cycle before first wear and after each use. Steer clear of fabric softener and bleach. Hang dry to keep your undies at maximum performance. Do not iron.
We typically 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.
