Modal Cotton

Modal Cotton Brief

Original Price

$35

Sale Price

$17.50

colorSlate

 - final sale*

Select a color

size

size chart

buy 4 and save 10%

Buy 4-5 pairs for 10% off

Buy 6-7 pairs for 15% off

Buy 8+ pairs for 20% off

Savings are applied automatically during checkout. Our custom set discount applies to Thinx period underwear and Thinx for All Leaks bladder leak underwear (but excludes Saver Sets).

*Final sale items are not eligible for returns or exchanges.

style

A comfy, full-coverage silhouette made from eco-friendly Modal Cotton — now in our highest absorbency.

fit

This style has an extended gusset for extra front-to-back coverage and fits true to size, so we recommend ordering your usual size.

Thinx - Cotton Brief - Style+Fit.jpg
Wear this on your heaviest days or overnight for maximum leak protection that's cozy and buttery-soft.

fabric

  • body/liner: 53% SUPIMA® Cotton, 35% TENCEL™ Modal, 12% elastane
  • gusset 1 (wicking): 100% polyester
  • gusset 2 (absorbent): 100% polyester
  • gusset 3 (barrier): 100% polyester, coated w/ breathable PU
  • polyester, polyurethane, Agion®, Lava XL-N®

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!

Thinx Modal Cotton illustration

Modal Cotton

This comfy, cozy soft cotton blend offers a more luxurious, eco-friendly option - so you can feel good and do good for the planet.

My flow is kinda all over the place but even on my heaviest days, these hold up. I need more pairs!
Ellen from Indianapolis, IN, light to heavy flow

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!

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Thinx - PDP - Promo - Create a Set 4/6/8

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