45-day trial
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Classic
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
absorbency moderate
regular tampon
menstrual cup
pantyliner
regular pad
mL
teaspoon
size
buy 3, save 10%
buy 3, save 10%
Our best-selling style of period undies — complete with a full-coverage fit and a comfy lace waistband.
Thinx underwear is not made or treated with PFAS.
This style has extra back gusset coverage. The elastic fits snugly around the leg to protect from leaks, so if you're in between sizes, we recommend sizing up.
Our underwear is certified according to STANDARD 100 by OEKO-TEX:registered: [20.HUS.04850 | HOHENSTEIN HTTI]
Wash before wearing. Hand wash or machine wash cold on a delicate cycle. Do not use bleach or fabric softener. Hang dry — no ironing please!
Stylish silhouettes featuring seasonal colors and lace & mesh details in a silky-smooth fabric. Available in all 5 absorbencies for every type of flow.
I wear this to train in Brazilian jiu-jitsu, full contact! No way I’m going without the safety net of Thinx.Katheryne from New York, NY, heavy flow
Tell us a li'l bit about your flow, and we'll match you with the right pair!
Mix and match any Thinx undies — and you can save up to 20%.