Get 50% off Thinx + Speax 🎉 Cyber Sale ends in:

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Boyshort

Original Price

$38

Sale Price

$19

absorbency moderate

holds 3worth.
colorBlack

 - final sale*

Select a color

size

size chart

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

style

A full-coverage style with a little extra length in the leg for flexible, reliable leak protection.

fit

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

Thinx - Boyshort - Style+Fit.jpg
The fitted leg makes this style perfect for overnight wear, or for when you want to feel extra comfy on moderate flow days.

fabric

  • body: 84% polyamide, 16% elastane
  • body liner: 95% cotton, 5% elastane
  • gusset 1 (wicking): 95% cotton, 5% elastane
  • gusset 2 (absorbent): 96% cotton, 4% elastane
  • gusset 3 (barrier): 100% polyester, coated w/ breathable PU

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!

As a trans person, it's so affirming to know I can keep wearing a masculine style of underwear when going through something so difficult.
Leo from Newcastle, UK, light 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 - give $10, get $10

give $10, get $10

When you refer a friend (and they make a purchase) you both get $10 off.

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