leakproof protection meets next-level comfort

Thinx all day leakproof period underwear in nude, gray, and black

Our newest styles absorb up to 12 regular tampons worth of flow

Our newest styles absorb up to 12 regular tampons worth of flow

shop now
Drop with a circle around it saying Leakproof up to 12 hours

all-day protection up to 12 hrs

Explore new Thinx for All styles featuring our unique LeakSafe™ barrier — starting at $17.

shop leakproof

Boyshort & Sleep Shorts

Get comfy on your period with little extra length in the leg.

get cycle-long protection

Explore our Saver Sets, and get more comfort for less.

how our leakproof tech works

Designed with our unique LeakSafe™ barrier, the newest Thinx styles offer our latest and greatest in leak protection.

  • An icon showing the leaksafe barrier meant to illustrate how Thinx for All absorbs moisture.

    LeakSafe™ barrier guards against leaks

  • An icon showing three droplets meant to illustrate how Thinx for All wicks moisture away.

    moisture-wicking fabric helps keep you dry

  • An icon showing many circles inside a larger circle meant to illustrate how Thinx for All controls odors.

    odor control technology helps minimize odors

  • An icon showing a bowl with liquid contained inside meant to illustrate how Thinx for All prevents leaks.

    absorbent layers hold up to 12 reg. tampons worth

styles for you

no dig waistband design

Thinx - Comfort Stretch Hiphugger - Black - Front

Comfort Stretch Hiphugger

Original PriceOriginal Price

$36

5 out 6 droplets

4 colors

Thinx - TFA - Everyday Comfort Hi-Waist - Black - Front

Everyday Comfort Hi-Waist

Original PriceOriginal Price

$18

5 out 6 droplets

4 colors

Thinx - Ultra Soft Hi-Waist - Black - Front

Ultra Soft Hi-Waist

Original PriceOriginal Price

$38

5 out 6 droplets

2 colors

A roundup of our customer-favorite styles — to make choosing easy.

Thinx - Breathable Hiphugger - Brush - Front

Breathable Hiphugger

Original PriceOriginal Price

$36

5 out 6 droplets

3 colors

flex fit

Thinx - Ultra Soft Brief - Maritime - Front

Ultra Soft Brief

Original PriceOriginal Price

$36

5 out 6 droplets

2 colors

extra coverage

Thinx - Comfort Stretch Hi-Waist - Plum - Front

Comfort Stretch Hi-Waist

Original PriceOriginal Price

$38

5 out 6 droplets

3 colors

The Thinx team’s tried-and-tested favorites.

Thinx - Sleep Shorts - Black - Front

Sleep Shorts

Original PriceOriginal Price

$50

5 out 6 droplets

3 colors

Thinx - Cotton Boyshort - Black - Front

Modal Cotton Boyshort

Original PriceOriginal Price

$38

5 out 6 droplets

2 colors

TFA Cotton-Boyshort Black Front

Moderate Cotton Boyshort

Original PriceOriginal Price

$19

3 out 6 droplets

2 colors

Try our Boyshort & Sleep Shorts for a little extra length.

A roundup of our customer-favorite styles — to make choosing easy.

how absorbent is it really?

5 out 6 droplets

all-day absorbency


up to 12 regular tampons

up to 3 regular pads

up to 3 menstrual cups

the latest

Thinx for All underwear

Our new leakproof Ultra Soft Brief is perfect for feeling cozy and protected on your period.

now trending

now trending

Thinx Sleep Shorts

Feel protected whether you’re catching zzz’s or binging a show.

Thinx Boyshorts

Get comfy in Boyshorts, perfect for lounging or layering.

Thinx Get BodyWise Image

empowering all with body literacy

Did you know half of adults have felt too ashamed or embarrassed to seek help when they have questions about their bodies? That’s why we created Get BodyWise. With better education around periods and bladder leaks, we can fight societal stigmas and help everyone become body literate.

FAQs

ready to get your Thinx?

Thinx leakproof period underwear

ready to get your Thinx?

shop all styles