Insole: EVA/Rubber sole made with at least 30% of recycled EVA, Outsole: Molded hard recycled EVA outsole for more durability, Straps: Allergy free SEBS strap with soft hand feel, Footbed: Printed footbed, Upper: 100% Sebs, Insole: 38% Recycled Eva 33%Eva 29% Rubber, Outsole: 38% Recycled Eva 33%Eva 29% Rubber.