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Saver Sets

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Black Heavy Brief Set

Original Price

$51

Sale Price

$43

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

what's inside

  • 3 Heavy Cotton Briefin Black

    4 out 5 droplets
holds4
worth.

size

size chart

style

Switch to period underwear for reusable protection that lasts all period long. This Set features three pairs of Thinx for All Heavy Cotton Brief.

Thinx underwear is not made or treated with PFAS.

fit

This style has full-lining coverage and fits true to size, so we recommend ordering your usual size.

TFA_Brief_Style+Fit.jpg
This style gives you comfort and coverage in a classic silhouette — the perfect start to your period underwear journey.

fabric

  • body: 95% cotton 5% elastane
  • layer 1 (wicking): 100% polyester
  • layer 2 (absorbent): 100% polyester
  • layer 3 (barrier): 100% polyester, coated w/ breathable PU
  • polyester, polyurethane, Agion®, Lava XL-N®"
  • Thinx underwear is not made or treated with PFAS.

Our underwear is certified according to STANDARD 100 by OEKO-TEX:registered: [20.HUS.04850 | HOHENSTEIN HTTI]

care instructions

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!

introducing Thinx for All

Thinx for All

Everyday period underwear made from comfy cotton, available in our most popular absorbency levels.

They work super well (even on my heavy days). If you wear these the night before you expect your period, you can avoid mayhem!
Layla J., Minneapolis, MN

how our period underwear works

Thinx - PDP - take the Know Your Flow quiz

find your style

Tell us a li'l bit about your flow, and we'll match you with the right pair!

Thinx - PDP - create a set

buy more, save more

Mix and match any Thinx undies — and you can save up to 20%.

FAQs