It is made of extremely flexible EVA material. DeFacto Women's Eva Single Band Slippers that have been tested for harmful substances, are waterproof, heat resistant, high quality, ultra-light, skin-friendly, washable and extremely easy to care for. Eva 100%; Model Information Orange-OG61: Bust: 80 Height: 1.77 Hips: 92 Waist: 60; Model Size Orange-OG61: 39/40; Item Code: X3605AZ22SM; Heel Height: 3 cm; Model Information Pink-PN224: Chest: 83 Height: 1.8 Hips: 89 Waist: 60; Model Size Pink-PN224: 39/40; Model Information Green-GN880: Chest: 83 Height: 1.8 Hips: 89 Waist: 60; Model Size Green-GN880: 39/40;