Upper: Crazy Horse Leather. Insole: Memory Foam, Removable. Midsole: Phylon, Steel. Outsole: Heat Resistant, Oil Resistant, Rubber. Heat Resistance (Celsius): 300°C. Fabric Technology: Anti-Static, Breathable, Durable, Waterproof Membrane, Penetration Resistant. Heel Guard, Padded Collar, Padded Tongue, PU Collar, Pull Tab. Flat. Design: Logo, Text. Conforms to Safety Standard: EN ISO 20345:2011, EU Standard, S3 WR HRO SRC, UKCA. Toe Style: Steel Toe Cap. Fastening: Lace Up, Loop. Ref: UTFS10355