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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 super comfy, full-coverage style made from premium Modal Cotton, featuring leakproof protection up to 12 hours. Fits true to size.
Formerly named Modal Cotton Brief.
Made with our LeakSafe™ barrier: Leakproof all day up to 12 hours
Moisture-wicking fabric helps keep you feeling dry
Odor control technology helps minimize odors
Thin and discreet — looks and feels like regular underwear
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%.