Goat Union

designed to FitBetter

❗️❗️❗Note: currently we are encountering a technical issue with the Amazon system. Some sizes are missing from the Period Shorts product page. Please contact us or purchase from our Etsy shop if you can't find your sizes. Thank you for your understanding. – Goat Union.

😇 2 years in a row❗️❗️Both styles!! The Best Period Underwear 2022Wirecutter NYTimes.

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📍 NOW you can also find us on Etsy.

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

🔖 Social Proofs – other reviews of Goat Union period underwear.

certified materials

The main materials (all 4 layers) used in our period underwear collection have met the human-ecological requirement and have been certified by STANDARD 100 by OEKO-TEX® [ BEAO 088186 TESTEX ] and [ SH050 163638 TESTEX ]. *Copy the label number first then paste it on OEKO-TEX Lable Check.

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 🌎 and being less wasteful in our day-to-day. Every step counts. 👣


  • 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 FitBetter.

Ready to order 🛒 ⁇ Visit our Goat Union@Amazon or Goat Union@Etsy store.