Modibodi
Specs partially disclosed modibodi.com ↗
Period underwear can't be plastic-free - the leakproof and absorbent layers are synthetic - but Modibodi offers more natural-fiber choice than most, with tops available in GOTS organic cotton, merino wool, TENCEL, and bamboo viscose, and a synthetic (polyester/polyamide/elastane) absorbent gusset. Its fabrics are OEKO-TEX certified and third-party tested free of PFAS, which is the standard that matters in this category.
How clear are their specs?
Lists the outer fabric options (organic cotton, merino, TENCEL, bamboo) and the synthetic gusset make-up, and states third-party PFAS-free testing.