Goat Union

designed to FitBetter

PFAS testing

Product safety is one of our design priorities. We understand many of you are concerned about the PFAS. Not only work with reliable suppliers who have STANDARD 100 by OEKO-TEXยฎ certified materials, but we also did an additional PFAS test on our finished products โ€” fabrics & elastic textiles. Check our latest report here.

๐Ÿ“Œ Best for Heavy Flow - The 12 Best Period Underwear of 2023, Tested and Reviewed โ€“ verywellhealthย 

๐Ÿ˜‡ ย 3 years in a rowโ—๏ธโ—๏ธBoth styles!! The Best Period Underwear 2023 โ€“ Wirecutter NYTimes

๐Ÿฅณย  ๐ŸŒŠ Best for Heavy Flow - The 13 Best Period Underwear of 2023, Tested & Reviewed - Byrdie

ย ๐Ÿ˜ดย  ๐Ÿ›Œย  Best for Sleep - The 13 Best Period Underwear for 2023 - health.com

ย ย ๐Ÿ’ค ๐ŸŒ™ Best for Sleep - The Best Period Underwear of 2023, According to Our Tests - treehugger

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

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-TEXยฎ [ 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 ๐ŸŒŽย  and being less wasteful in our day-to-day. Every step counts. ๐Ÿ‘ฃ


Our central principle is to prioritize FitBetter. Our distinctive ergonomic sizing system ensures superior-fitting underwear. We continuously strive to enhance and refine our sizing system, driven by our unwavering dedication to inclusivity. We warmly welcome your valuable suggestions and ideas.

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

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

Ready to order ๐Ÿ›’ย  โ‡ย  Visit our Goat Union@Amazon or Goat Union@Etsy store.