Classic

Final Sale 50% off

Thong

Original Price

£25

Sale Price

£12.50

Thinx underwear is not made or treated with PFAS

Thinx underwear is not made or treated with PFAS

absorbency lightest

1 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 barely-there style with a lace waistband and no visible panty line, made for your lightest days.

fit

This style has minimal coverage and fits true to size, but feel free to size down if you prefer a tighter fit.

Thinx - Thong - Style+Fit.jpg
Wear this one at the end of your period, or as a backup layer of protection with tampons or a cup.

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
  • SUPIMA® Cotton, elastane, polyester, polyurethane, Nanotex® wicking agent, Agion®

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 Classic illustration

Classic

Stylish silhouettes featuring seasonal colors and lace & mesh details in a silky-smooth fabric. Available in all 5 absorbencies for every type of flow.

It's ideal for those “will I get it?” days and the “thank god it’s almost over” days. Even on my heavy days, I wear them with my cup to avoid leakage.
Liv from Toronto, Ontario, medium to heavy 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