Upper: Synthetic. Lining: Breathable, Mesh, Neoprene. Insole: BioDeWix, CR Flex-Foam, Enzyme Antimicrobial Treatment. Outsole: Durable, Heat Resistant, Ribbed, Traction Grip. Anti-Blister, Insulated, Pull Tab, Soft Touch Toe. Fabric Technology: Moisture Wicking, NZYM, Odour Control, Prevents Chafing, Waterproof. Flat. Design: Contrast Detail, Logo. Toe Style: Round. Cold Resistance (Celsius): 18°C. Sole Features: Self-Clean, Shock Absorbing. Fastening: Slip-on. Ref: UTFS4301