Premium Waterproof Leather with Waterproof Membrane Asymetrical Composite Safety Toe and Non-Metallic Puncture Resistant Plate Anti-Fatigue Technology polyurethane footbed for shock absorption and energy return Vibram Fire & Ice Outsole for optimal performance in any temperature, for increased durability, traction and slip resistance Combination three-quarter Goodyear welt/cement heel construction, with fiberglass shank for structural support