Outer Composition Calf Leather: 50.0%, Outer Composition Calf Suede: 50.0%, Lining Composition Rubber: 11.0%, Sole Composition Rubber: 50.0%, Lining Composition Organic Cotton: 5.0%, Lining Composition Fabric: 26.0%, Sole Composition Silicone: 26.0%, Sole Composition Synthetic Rubber: 5.0%