Outer Composition Calf Suede: 50.0%, Outer Composition Organic Leather: 50.0%, Sole Composition Rubber: 50.0%, Inner Composition Rubber: 13.0%, Inner Composition Organic Cotton: 11.0%, Sole Composition Other Materials: 19.0%, Inner Composition Other Materials: 9.0%, Sole Composition Quartz: 26.0%, Inner Composition Polyethylene Vinyl Acetate (peva): 67.0%, Sole Composition Synthetic Rubber: 5.0%