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period underwear

now in styles that absorb up to 4 tampons’ worth

Let’s take things to the next level! It’s the retro style you love — now with 2x the absorbency. Super Hi-Waist is here.

There’s no better feeling than *finally* getting to wear your Thinx. Shop our new colors, Juniper & Pine, in our Classic and Cotton styles.

Big news — we just dropped our special-edition collab with Ilana Glazer! Get the Hi-Waist, Cheeky, and more in a bold Crimson red.

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.

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

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 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.

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