45-day trial
+ free returns
Don’t love 'em?
Get your $ back
no Qs asked
Thinx
flex fit
Thinx underwear is not made or treated with PFAS
45-day trial
+ free returns
Don’t love 'em?
Get your $ back
no Qs asked
Thinx underwear is not made or treated with PFAS
12 regular tampons
3 menstrual cups
3 regular pads
108 mL
22 teaspoons
size
buy 3, save 10%
buy 3, save 10%
A full-coverage style made with super soft, premium Modal Cotton. Featuring leakproof technology and extra length in the leg to help you feel secure and protected on your period. Fits true to size, but we recommend sizing up if you want a lil' more room in the legs.
Made with our LeakSafe™ barrier: Leakproof all day or all night up to 12 hours
Extended absorbent gusset for all-night protection
Moisture-wicking fabric helps keep you feeling dry
Odor control technology helps minimize odors
Thin and discreet — looks and feels like regular underwear
Our underwear is certified according to STANDARD 100 by OEKO-TEX:registered: [20.HUS.04850 | HOHENSTEIN HTTI]
Wash before wear, machine wash cold with like colors, line dry. Do not iron, bleach, dry clean, or tumble dry.
Our buttery-soft, premium TENCEL™ Modal Cotton blend is perfect for feeling *extra* cozy on your period.
Take our short quiz to get matched with undies that suit your style and needs.
Mix and match any Thinx undies — and you can save up to 20%.