flat pair of thinx ultra soft hiwaist in spicy on a table

absorbent underwear for comfort & confidence

Later, leaks. Hello, comfort and protection.

Black Lace Period Underwear on Model

period

Period underwear that’s leakproof up to 12 hours, for all-day comfort and confidence.

Model Holding Waist Band of Black Period Underwear

bladder leaks

Comfortable, discreet underwear designed to absorb bladder leaks.

Two Hands Holding Up Black Teen Period Underwear

teens

Leakproof period underwear in sizes and colors specially designed for teens.

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Designed without PFAS or any other substance in our Clean Commitment List.

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inclusive sizing

We make comfortable underwear in sizes for every body.

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free trial

Try our undies for 45 days. If you don’t love ‘em, we’ll give you your money back.

woman holding thinx everyday comfort lace brief in blue

our period underwear

leakproof up to 12 hours

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

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LeakSafe™

Our LeakSafe™ barrier helps guard against leaks

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dry feel

Moisture-wicking fabric helps keep you dry

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odor controlling

Odor control technology helps minimize odors

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absorbent

Absorbent layers hold up to 12 reg. tampons worth

Fast Company’s Most Innovative Companies of 2017
Entrepreneur Magazine’s 100 Most Brilliant Companies of 2016
TIME Magazine’s Top 25 Inventions of 2015
ABC’s Good Morning America in 2019

Fast Company’s Most Innovative Companies of 2017
Entrepreneur Magazine’s 100 Most Brilliant Companies of 2016
TIME Magazine’s Top 25 Inventions of 2015
ABC’s Good Morning America in 2019

Fast Company’s Most Innovative Companies of 2017
Entrepreneur Magazine’s 100 Most Brilliant Companies of 2016
TIME Magazine’s Top 25 Inventions of 2015
ABC’s Good Morning America in 2019

Fast Company’s Most Innovative Companies of 2017
Entrepreneur Magazine’s 100 Most Brilliant Companies of 2016
TIME Magazine’s Top 25 Inventions of 2015
ABC’s Good Morning America in 2019

Fast Company’s Most Innovative Companies of 2017
Entrepreneur Magazine’s 100 Most Brilliant Companies of 2016
TIME Magazine’s Top 25 Inventions of 2015
ABC’s Good Morning America in 2019

Comfort Stretch Hiphugger

“I have a heavy period and I was nervous that these would not hold, but these are incredible!”

Tayla B.

read more reviews

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all-night styles

Overnight coverage and cozy feels.

3 pairs of black period underwear in a saver set

saver sets

Get cycle-long protection and save.

Dusk Cheeky Period Underwear

last call

Grab select styles at a discount before they're gone.

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Get BodyWise

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? With better education around periods and bladder leaks, we can fight societal stigmas and help everyone become body literate.

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