Goat Union

designed to FitBetter

๐Ÿฅณ We are thrilled to announce that our products have been eliglble for HSA and FSA.

Best Period Underwear of 2021 โ€“ voted by New York TimesTruly Free-Bleeding, no need for pads or tampons.Full protection from front to back, designed for stomach and back sleepers.Goat Union Period Shorts โ€“ your best period nightwearGoat Union Period Shorts, clean look with duo lining, wear them just like a regular 2" shorts.

๐Ÿฅณ ๐ŸŽ‰ ๐Ÿช… ๐Ÿคฉ The Best Period Underwear 2021 โ€“ picked by Wirecutter NYTimes.

๐Ÿ”– Social Proofs โ€“ other reviews of Goat Union period underwear.

reduce & replace

Looking for a tampon, pad, and cup alternative? Goat Union's period underwear can reduce the need to use so many disposable menstruation products or replace them depending on your flow. Let's start reducing our carbon footprint ๐ŸŒŽ and being less wasteful in our day-to-day. Every step counts. ๐Ÿ‘ฃ

certified materials

The main materials (all 4 layers) used in our period underwear collection have met the human-ecological requirement and been certified by STANDARD 100 by OEKO-TEXยฎ; and also have passed the PFOA/PFOS tests from SGS.


  • Cotton crotch lining wicks moisture.

  • The absorbent layer can hold up to 3-4 regular tampons.

  • The TPU coated layer prevents leakage and is breathable.

  • The outer layer is butter-soft and breathable bamboo cellulose spandex.


FitBetter is our core design value. We use our own advanced ergonomic sizing system that delivers better-fitting underwear. Due to our commitment to completely inclusive sizing, we are constantly in the process of improving and developing our sizing system. We would love to hear your suggestions and ideas.

Interested in helping us elevate our ergonomic sizing system? Please click โžก FitBetter.

Ready to order ๐Ÿ›’ โ‡ Visit our Goat Union store on Amazon.