a next level fit for better period protection

all Thinx styles are now available in sizes X-4X

all Thinx styles are now available in sizes X-4X.

true plus size

true plus size

Introducing our new & improved sizes! Based on your feedback, we’ve redesigned sizes X-4X with true plus-size measurements throughout the waist, hip, and leg. This is a waaay comfier fit; just what you need when you’re on your period. ☁️

wear-tested

We’ve rigorously tested every size for fit *and* function with actual people on their periods, so you can trust Thinx as your go-to protection. 💪

wear-tested
no pads or tampons

better fit = better protection

Because our period underwear hugs your body, there’s nowhere for leaks to go! Every pair moves with you, keeping you covered.

better fit = better protection

no pads or tampons

Our underwear can completely replace single-use disposables — a sustainable switch that’s better for you & better for the planet.

stay protected

stay protected

Thinx are constructed to absorb flow, control odor, prevent leaks, and hug your body — so your period goes in and nothing comes out. With a better fit, you’ll have better protection. ☂️

stay protected