New all-night absorbency styles! Shop Sleep Short and Boyshort

Create a Set and save up to 20% when you buy 3+ pairs!

All undies are FSA/HSA eligible! Learn more

shop all
period
Featured

best sellers

saver sets

leakproof

last call

shop all period underwear

Style

Hiphugger

Brief

Hi-waist

Boyshort

Sleep Shorts

Bikini
shop all period underwear
how our period underwear works
bladder
Featured

best sellers

saver sets

last call

shop all bladder leak underwear

Style

Hiphugger

Brief

Hi-waist
shop all bladder leak underwear
how our bladder leak underwear works
teens
Featured

best sellers

sets

leakproof

last call

shop all teens underwear

Style

Bikini

Brief
shop all teens underwear
how our period underwear works
saver sets
last call
take the quiz

learn
product info

how they work

product safety

our protection promise

how to wash

reviews

FAQ

spotlights

postpartum

leakproof tech

teens period underwear

about us

about us

Get BodyWise
blog

check out The Periodical. Find answers to taboo questions.
Sign in

shop all
Featured

best sellers

saver sets

leakproof

last call

shop all period underwear

Style

Hiphugger

Brief

Hi-waist

Boyshort

Sleep Shorts

Bikini
shop all period underwear
how our period underwear works
Featured

best sellers

saver sets

last call

shop all bladder leak underwear

Style

Hiphugger

Brief

Hi-waist
shop all bladder leak underwear
how our bladder leak underwear works
Featured

best sellers

sets

leakproof

last call

shop all teens underwear

Style

Bikini

Brief
shop all teens underwear
how our period underwear works
saver sets
last call
take the quiz
product info

how they work

product safety

our protection promise

how to wash

reviews

FAQ

spotlights

postpartum

leakproof tech

teens period underwear

about us

about us

Get BodyWise
blog

check out The Periodical. Find answers to taboo questions.

thinx period underwear in red showing off gusset

how they work

model holding teen period underwear in front of a washing machine

how to wash

underwear protection promise badge

product safety

Sign in
find a store
blog

shop last call

Grab your favorite styles at a discount before they're gone!

Filter

Absorbency

All Day

Style

Hi-waist

Brief

Best For

Period

Teens

Collection

Everyday Comfort

Teen

Color

Multi

Red

Pink

Grey

Black

Indigo

Violet

Size

XS

S

M

L

XL

1X

2X

3X

4X

9-10

11-12

13-14

15-16

Sort by:

front view of thinx teens brief in violet

9-10

11-12

13-14

15-16

Teens

new

All-Day Brief

$16

Violet

Lucky Stars

Hot Pink

Black

front view of thinx everyday hi waist in indigo

Everyday Comfort Hi-Waist view 2

XS

S

M

L

XL

1X

2X

3X

4X

Period

new

Everyday Comfort Hi-Waist

$18

Indigo

Rhubarb

Mosaic

Black

Storm

front view of thinx lace brief in indigo

Everyday Comfort Lace Brief view 2

XS

S

M

L

XL

1X

2X

3X

4X

Period

new

Everyday Comfort Lace Brief

$17

Indigo

Black Haze

Storm

Rhubarb

$2.01 saved!

front view of everyday comfort brief in multicolor print

Everyday Comfort Brief view 2

XS

S

M

L

XL

Period

Everyday Comfort Brief

~~$17~~$14.99

Mosaic

Black

let's be friends

By signing up, I affirm that I am at least 13 years old (14 years old for residents of Quebec, Canada) and that I agree to the Thinx, Inc. Terms of Use, Privacy Policy, Washington Health Data Rights, and Financial Incentives Offered.

Please enter a correct email address

You're in!

sign up for SMS

*By checking the box and submitting your phone number below, you affirm that you are the owner of the mobile phone number entered below and that you consent that Thinx Inc. may send to you at the number you provided marketing and promotional messages informing you about Thinx Inc. products, promotional offers, reminders and other advertising and marketing messages using automated dialing technology, text messaging, and recorded messages. Your consent is not a condition of purchase. Message frequence varies. Reply STOP to opt-out of text messages. Msg & data rates may apply. View Thinx SMS Terms of Service, Terms of Use, Privacy Policy, Washington Health Data Rights, and Financial Incentives Offered.

Please enter a correct phone number

You're in!

follow us

customer service

contact us
faqs
reviews
exclusive discounts
student discount
store locator

our company

about us
Get BodyWise
explore our brands
product safety
our protection promise

orders & payment

account
shipping info
returns & exchanges
track my order

customer service

contact us
faqs
reviews
exclusive discounts
student discount
store locator

our company

about us
Get BodyWise
explore our brands
product safety
our protection promise

orders & payment

account
shipping info
returns & exchanges
track my order

follow us

Ship to

© Thinx, Inc. All Rights Reserved. 2025

privacy policy
terms of use
sitemap
accessibility

© Thinx, Inc. All Rights Reserved. 2025

Do not share or sell my personal information
Limit use of my sensitive personal information
California Privacy Rights
Washington Health Data Rights
Manage My Privacy Rights

My Bag ()

Add 3 eligible products to get 10% off!

1st Pair!

10% off

15% off

20% off

You may also like

Ultra Soft Sleep Shorts

Ultra Soft Sleep Shorts view 2

Period

Ultra Soft Sleep Shorts

$55

Black

Plum

front view of thinx teens brief in violet

Teens

All-Day Brief

$16

Violet

Lucky Stars

Hot Pink

Black

front view of thinx hiphugger in hazelnut

Comfort Stretch Hiphugger view 2

Period

Comfort Stretch Hiphugger

$36

Hazelnut

Black

Plum

Slate

Brush

front view of everyday comfort brief in multicolor print

Everyday Comfort Brief view 2

Period

Everyday Comfort Brief

~~$17~~$14.99

Mosaic

Black

front view of thinx teens bikini in blue leopard

Teens

All-Day Bikini

$16

Blue Leopard

Lucky Stars

Black

front view of lace hiwaist bladder leak underwear in purple

Lace Hi-Waist view 2

Bladder

Lace Hi-Waist

$39

Blackberry

Black

Beige

front view of thinx everyday hi waist in indigo

Everyday Comfort Hi-Waist view 2

Period

Everyday Comfort Hi-Waist

$18

Indigo

Rhubarb

Mosaic

Black

Storm