Upper: Synthetic Nubuck. Lining: 3D Mesh. Insole: Foam, Removable. Midsole: Steel. Outsole: Fuel Resistant, Oil Resistant, PU (Polyurethane), Slip Resistant. Energy Absorbent Heel, Pull Tab. Fabric Technology: Puncture Resistant, Water Resistant. Flat Heel. Cut: Mid Cut. Design: Logo. Conforms to Safety Standard: ASTM F2413-18, CE Certified, EN ISO 20345:2011, ESD, S3 - SRC. Toe Style: Steel Toe Cap. Fastening: Slip-In, Twist Lock. Ref: UTFS9105