Vibram FiveFingers SeeYa - Men's Black/Dayglow 46 synthetic-and-fabric Upper: Polyester Fabric and Nylon Mesh Sole: TC-1 Rubber Footbed: 2mm Polyurethane + Microfiber Weight: Men's Size 42 - 6.7oz. each, 14.4oz./pair Machine washable. Air dry away from sun or heat source.