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You're about to enter the THINX Periodical, a blog with *adult-ish* content. Do you want to proceed?

Organic Cotton Set

$100 $89

Organic Cotton Set

Moderate to heavy days.

Comfy, relaxed, & breathable β€” keep it *au naturale* with a set of our organic cotton undies. Includes 2 black Organic Cotton Briefs (which hold up to 2 tampons' worth) and 1 grey Organic Cotton Bikini (holds up to 1.5 tampons' worth).

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Moderate to heavy days.

$100 $89
what’s my size?

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Pre-order! Your entire order will ship February 15th with Organic Cotton Set /

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Your hip measurement is the most important size to consider when trying to find the perfect fit.

πŸ‘‡ select a sizecmin

xxs - hip 33-34"

size XXS


waist , measured at your natural waist (aka just under your belly button)


hip , measured right around the largest part of your booty πŸ‘


We recommend size XXS if you wear jean sizes (US). πŸ‘–πŸ‘Œ


*Because THINX uses special technology to keep you leak free, our sizes fit a bit more snug than your average run-of-the-mill undies.

xs - hip 35-36"

size XS


waist , measured at your natural waist (aka just under your belly button)


hip , measured right around the largest part of your booty πŸ‘


We recommend size XS if you wear jean sizes (US). πŸ‘–πŸ‘Œ


*Because THINX uses special technology to keep you leak free, our sizes fit a bit more snug than your average run-of-the-mill undies.

s - hip 37-38"

size S


waist , measured at your natural waist (aka just under your belly button)


hip , measured right around the largest part of your booty πŸ‘


We recommend size S if you wear jean sizes (US). πŸ‘–πŸ‘Œ


*Because THINX uses special technology to keep you leak free, our sizes fit a bit more snug than your average run-of-the-mill undies.

m - hip 39-40"

size M


waist , measured at your natural waist (aka just under your belly button)


hip , measured right around the largest part of your booty πŸ‘


We recommend size M if you wear jean sizes (US). πŸ‘–πŸ‘Œ


*Because THINX uses special technology to keep you leak free, our sizes fit a bit more snug than your average run-of-the-mill undies.

l - hip 41-42"

size L


waist , measured at your natural waist (aka just under your belly button)


hip , measured right around the largest part of your booty πŸ‘


We recommend size L if you wear jean sizes (US). πŸ‘–πŸ‘Œ


*Because THINX uses special technology to keep you leak free, our sizes fit a bit more snug than your average run-of-the-mill undies.

xl - hip 43-44Β½"

size XL


waist , measured at your natural waist (aka just under your belly button)


hip , measured right around the largest part of your booty πŸ‘


We recommend size XL if you wear jean sizes (US). πŸ‘–πŸ‘Œ


*Because THINX uses special technology to keep you leak free, our sizes fit a bit more snug than your average run-of-the-mill undies.

xxl - hip 45Β½-47”

size XXL


waist , measured at your natural waist (aka just under your belly button)


hip , measured right around the largest part of your booty πŸ‘


We recommend size XXL if you wear jean sizes (US). πŸ‘–πŸ‘Œ


*Because THINX uses special technology to keep you leak free, our sizes fit a bit more snug than your average run-of-the-mill undies.

3xl - hip 48-49½”

size 3XL


waist , measured at your natural waist (aka just under your belly button)


hip , measured right around the largest part of your booty πŸ‘


We recommend size 3XL if you wear jean sizes (US). πŸ‘–πŸ‘Œ


*Because THINX uses special technology to keep you leak free, our sizes fit a bit more snug than your average run-of-the-mill undies.


Comfy, relaxed, & breathable β€” keep it *au naturale* with a set of our organic cotton undies. Includes 2 black Organic Cotton Briefs (which hold up to 2 tampons' worth) and 1 grey Organic Cotton Bikini (holds up to 1.5 tampons' worth).


Body: 89% nylon, 11% elastane
Gusset: 95% cotton, 5% elastane; middle breathable PUL


To take care of your THINX, you rinse first , pop β€˜em in a mesh laundry bag (this keeps your delicates, ya know, delicate), then cold wash and hang dry . Don’t use bleach or fabric softener! And yes, the rest of your clothes will be fiiine.


THINX are made with our signature period-proof tech that absorbs your flow, controls odor, helps prevents leaks, and keeps you fresh β€˜n’ dry β€” all without feeling bulky or wet. THINX are underwear for periods made with our signature tech that absorbs your flow, controls odor, helps prevents leaks, and keeps you fresh β€˜n’ dry β€” all without feeling bulky or wet.


grey organic cotton bikini

Made from our cozy, all-natural fabric β€” with wide, high-cut leg holes for running around (& laying around). Holds up to 1.5 regular tampons' worth.

black organic cotton briefs

2 pairs of our comfy, full-coverage fit in the same extra-breathable material. Holds up to 2 regular tampons' worth.

care instructions

To take care of your THINX, you rinse first, pop β€˜em in a mesh laundry bag (this keeps your delicates, ya know, delicate), then cold wash and hang dry. Don’t use bleach or fabric softener! And yes, the rest of your clothes will be fiiine.

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