My Bag
Where did you hear about Thinx?
Which social media platform?
Hey there!
You're about to enter the Thinx Periodical, a blog with *adult-ish* content. Do you want to proceed?

period-proof underwear

now in styles that absorb up to 4 tampons’ worth

If we all had periods, would we be more comfortable with them? Take a look at our first-ever national campaign — coming to a screen near you.

Big news! The fan-favorite Hi-Waist is now available in our smoky, dreamy hue — Dusk.

Bring some sexy back to your flow with Cleo — our new *limited edition* print in Hi-Waist and Cheeky. 🐆

2x the absorbency. 2x the protection. Meet Thinx Super — our new undies that absorb up to 4 tampons’ worth of your flow. 💪

Introducing Thinx air — our signature period-proof undies, now in a ultra-light, cooling micromesh fabric.

Thinx can replace or work as back-up leak protection to other period products. Depending on your flow, our undies can be worn instead of pads and liners, or to support tampons and cups.

how do
Thinx work?

how do
Thinx work?

Our period-proof undies hold up to 4 tampons’ worth — yet they look and feel like regular underwear.

learn more

try 'em

free shipping on 1st order w/ account

60 day money-back guarantee

no-hassle returns


Get started with a few favorites from other people with periods!

the girl who bled a river — and it was fine

let’s period better, together

Get period inspo, see new styles, and smash the taboo with us on Instagram. Follow us @shethinx and share your experience using #Thinx.

follow us!
Live Chat