Thinx air

Final Sale 50% off

air Bikini

Original Price

£34

Sale Price

£17

Thinx underwear is not made or treated with PFAS

Thinx underwear is not made or treated with PFAS

absorbency light

2 out 7 droplets
holds up to
worth.
colorBlack

 - final sale*

Select a color

size

size chart

buy 3, save 10%

Buy 3-4 pairs for 10% off

Buy 5-6 pairs for 15% off

Buy 7+ 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).

buy 3, save 10%

Buy 3-4 pairs for 10% off

Buy 5-6 pairs for 15% off

Buy 7+ 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 bikini silhouette — designed with ultra-thin micromesh to keep you cool, fresh, & dry on light to moderate flow days.

Thinx underwear is not made or treated with PFAS.

fit

This style has a slightly higher cut leg and full back coverage. It fits true to size, so we recommend ordering your usual size.

Thinx - air Bikini - Style+Fit.jpg
This fabric is quick-drying and lightweight, making it perfect for travel & exercise and comfy enough to wear everyday.

fabric

  • body: 78% polyamide, 22% elastane
  • gusset 1 (wicking): 95% cotton, 5% elastane
  • gusset 2 (absorbent): 96% cotton, 4% elastane
  • gusset 3 (barrier): 100% polyester, coated w/ breathable PU
  • SUPIMA® cotton, elastane, polyester, polyurethane, Nanotex® wicking agent, Agion®
  • 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!

Thinx air™️ illustration

Thinx air™️

Feel light as air in our breathable, quick-drying micromesh fabric. Perfect for when you need a lil ventilation down there.

These super-light, mesh-y undies are my new holy grail. Perf for running and working out — honestly whether I'm on my period or not.
Leesa from New York, NY, light to moderate flow

how our period underwear works

Thinx - PDP - take the Know Your Flow quiz

find your perfect pair

Take our short quiz to get matched with undies that suit your style and needs.

Thinx - PDP - create a set

buy more, save more

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

FAQs