The top and bottom material are made of biodegradable PLA: Blend of thermoplastic starch (TPS), biodegradable polyesters (PBAT,PLA) and natural plasticizers (glycerol and sorbitol).
Middle absorbent layer is made of: SAP (Super Absorbent Resin) which is made of of starch sodium acrylate and Woodpulp (Lignin and cellulose).
The elastic string is made of rubber and latex.