Body: 95% Organic Cotton with 5% Spandex JerseyAbsorbent Layer: 100% Polyester Leak Proof Layer: 100% Polyester PULToxicityNone, zero, nada, zilch. We are proud to be one of the few period underwear brands that do not use any toxins in our products because who wants chemicals near the most sensitive part of their body? Not us. Or you.Our fabrics have been rigorously tested by a third party company to ensure we are compliant with industry standards and best practices. We are proud to use fabric that is free of PFAS toxins.