Thinx Period-Proof Organic Cotton Bikini – Black, Large
Meet Thinx — period-proof underwear that works. Our underwear is designed with a built-in technology that absorbs menstrual flow, fights leaks and odors, and keeps you fresh and dry all cycle long. Depending on your flow (light, moderate, or heavy), Thinx period-proof underwear can completely replace or work as back-up leak protection for other period products like tampons, pads, liners, and cups.
Our Organic Cotton collection is made from a 100% natural fiber that’s soft, airy, and breathable. The Organic Cotton Bikini is a comfy, everyday style that absorbs up to 1½ tampons’ worth of your flow. Plus, our organic cotton is GOTS-certified, which means that it’s ethically and sustainably sourced. Better period, better planet.
At Thinx, we’re on a mission to empower every body through innovative solutions and social change. With every purchase of our period-proof undies, you’re giving life to our initiatives at our GiveRise program, where we — alongside our partners — are fighting for better access to puberty education, amplifying grassroots activism, and donating our underwear and time.
Absorbs 1½ regular tampons’ worth of your flow
Prevents leaks, stains, and odors
Ideal for light to moderate days on your period
Made from 100% GOTS-certified organic cotton
Soft, natural, breathable fabric
Cozy, full-coverage fit
Comfortable and durable waistband
How to use
Immediately after use, rinse your undies in cold water.
Put your Thinx in a mesh laundry bag, and machine wash with the rest of your laundry on a delicate cycle.
Steer clear of fabric softener and bleach, as they can damage our period-proof technology.
Hang dry your Thinx — and wear again!
The body of our organic cotton undies is made from 95% organic cotton and 5% elastane; the gusset is made from 95% cotton, 5% elastane, and a middle breathable PUL.