20% off Surprise Flash Sale ends in:

6days
:
05hours
:
24mins
:
15secs

underwear that absorbs your period

Take 20% off Thinx for a limited time!

Take 20% off Thinx for a limited time!

shop now

get personalized recs & 20% off

Use our Know Your Flow tool to see which styles are best for you 🙌

Know Your Flow Quiz

Surprise Flash Sale: 20% off everything!

Save on all period-absorbing undies and apparel before it’s too late ⏱️

give $10 get $10

For each friend you refer, you earn $10! They'll also get $10 off their first purchase.

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  • free, no hassle returns & exchanges

  • 60-day money-back guarantee!

  • p.s. *free* standard shipping on your first order when you create an account

  • free, no hassle returns & exchanges

  • 60-day money-back guarantee!

  • p.s. *free* standard shipping on your first order when you create an account

  • free, no hassle returns & exchanges

  • 60-day money-back guarantee!

  • p.s. *free* standard shipping on your first order when you create an account

  • free, no hassle returns & exchanges

  • 60-day money-back guarantee!

  • p.s. *free* standard shipping on your first order when you create an account

using Thinx is simple

comfortable

just like regular underwear

absorbent

from light to super

machine-washable

just wash, hang dry, and reuse

now trending

now trending

New & improved true plus sizes are here.

Overnight protection = no more period nightmares.

Styles that hold up to 5 regular tampons’ worth.

Meet Thinx air™, featuring ultra-thin micromesh.

Endometriosis Isn’t Just a “Painful Period Disease”

Our Team’s Fave Styles of Period Underwear

styles for you

Thinx - Sleep Shorts - Black - Front

Sleep Shorts

Original Price

Original Price

$50

Sale Price

$40

5 out 5 droplets

2 colors

Thinx - HS Hiphugger - Black - Front

Super Hiphugger

Original Price

Original Price

$35

Sale Price

$28

5 out 5 droplets

4 colors

Thinx - Hiphugger - Black - Front

Heavy Hiphugger

Original Price

Original Price

$35

Sale Price

$28

4 out 5 droplets

2 colors

Not sure which Thinx are right for you? Take our quick quiz.

Thinx - Cotton Boyshort - Black - Front

Cotton Boyshort

Original Price

Original Price

$38

Sale Price

$30.40

5 out 5 droplets

3 colors

Thinx - Super Cotton Brief - Black - Front

Super Cotton Brief

Original Price

Original Price

$35

Sale Price

$28

5 out 5 droplets

4 colors

Thinx - Super Hi-Waist - Black - Front

Super Hi-Waist

Original Price

Original Price

$35

Sale Price

$28

5 out 5 droplets

3 colors

Need extra protection for those heavy days?

Thinx - Cotton Thong - Black - Front

Cotton Thong

Original Price

Original Price

$25

Sale Price

$20

1 out 5 droplets

1 colors

Thinx - Thong - Black - Front

Thong

Original Price

Original Price

$25

Sale Price

$20

1 out 5 droplets

2 colors

Thinx - Cheeky - Black - Front

Cheeky

Original Price

Original Price

$30

Sale Price

$24

1 out 5 droplets

3 colors

For those just-in-case days when you still want to feel stylish.

Let’s find the right pair of Thinx for your ~flow~


absorbency


tampons

liners

pads

cups

Thinx for every flow

Thinx for every flow

giving rise to menstrual equity

With your help, the Thinx Inc. GiveRise program is advancing access to period products and supporting organizations championing reproductive healthcare, community giveback initiatives, and more. When you buy Thinx or make an in-cart donation, you’re helping fund periods near and far.

it’s okay to have questions!

Press play on any of the questions below to see a simulated chat experience in the video located in the "Chat video" Region.

how often should I change them?

how often should I change them?

how do I know what size to get?

how do I know what size to get?

how would Thinx work for me?

how would Thinx work for me?

limited time savings

limited time savings

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