![three models wearing period underwear in gray, black, and plum](http://www.thinx.com/cdn/shop/files/How-It-Works_Period_Banner_HowItWorks_Mobile_702x392px.jpg?v=1720794690&width=1024)
how our period underwear works
Thinx is washable, reusable period underwear that absorbs your flow while staying comfortable and discreetly thin. Our newest styles are leakproof all day up to 12 hours.
![model sitting in a chair wearing black period underwear](http://www.thinx.com/cdn/shop/files/How-It-Works_Period_Card_1_Desktop_872x872px.jpg?v=1720794870&width=640)
comfortable
Designed to keep you feeling dry and comfy.
![model holding period underwear in front of a washing machine](http://www.thinx.com/cdn/shop/files/How-It-Works_Period_Card_2_Desktop_872x872px.jpg?v=1720794916&width=640)
machine washable
Just wear, wash, and wear again. It’s that easy!
![model holding period underwear and touching the gusset](http://www.thinx.com/cdn/shop/files/How-It-Works_Period_Card_3_Desktop_872x872px.jpg?v=1720794963&width=640)
safe materials
Our underwear is safely made without PFAS.
our leakproof tech
leakproof all day up to 12 hours
Designed with our unique LeakSafe™ barrier, the newest Thinx styles offer our latest and greatest in leakproof protection.
![period underwear hanging on laundry rack](http://www.thinx.com/cdn/shop/files/How-It-Works_Period_Desktop_HowToWash_906x509px.jpg?v=1720795066&width=1024)
how to wash your Thinx
Machine wash cold before first wear and after each use with your other clothes — skip the bleach, ironing, and dry cleaning! Hang up your Thinx, and let 'em dry completely before putting them away.
a closer look
![model sitting on the ground wearing period underwear in black](http://www.thinx.com/cdn/shop/files/How-It-Works_Period_Desktop_A-Closer-Look-Hero_1344x1344px.jpg?v=1720795142&width=1024)
![model holding period underwear showing the black absorbent gusset](http://www.thinx.com/cdn/shop/files/How-It-Works_Period_Desktop_A-Closer-Look_Card1_642x642px.jpg?v=1720809631&width=1024)
![model holding period underwear in blue](http://www.thinx.com/cdn/shop/files/How-It-Works_Period_Desktop_A-Closer-Look_Card2_642x642px.jpg?v=1720795201&width=1024)
still have questions?
![two models on a couch wearing period underwear](http://www.thinx.com/cdn/shop/files/How-It-Works_Bladder_Hero_906x509_Desktop.jpg?v=1720794220&width=1024)
learn about our bladder leak underwear
Looking to find out how our bladder leak underwear works? We’ve got answers.