Outer Composition Calf Leather: 100%, Outer Composition Calf Suede: 100%, Sole Composition Rubber: 30%, Outer Composition Recycled Polyester: 100%, Lining Composition Recycled Polyester: 100%, Sole Composition Synthetic Rubber: 24%, Sole Composition Silica: 25%, Sole Composition Other Fibres: 21%