Outer Composition Calf Leather: 90.0%, Lining Composition Recycled Polyester: 100.0%, Outer Composition Calf Suede: 10.0%, Sole Composition Silica: 26.0%, Sole Composition Rubber: 50.0%, Sole Composition Synthetic Rubber: 5.0%, Sole Composition Other Materials: 19.0%