period underwear

now in styles that absorb up to 4 tampons’ worth

Fall for ~your flow~ with our Love Your Period Set, featuring 3 crushworthy undies. 😍

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.

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
  • free, no-hassle returns


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

the girl who bled a river — and it was fine