Designed for comfort, safety and reliability. The Mustang boot has full S3 protection with a 360 degree rubber external chassis system for maximum ankle support. Protective steel toecap. Steel midsole. Anti-static footwear. Energy Absorbing Seat Region. Water resistant upper to prevent water penetration. SRC - Slip resistant outsole to prevent slips and trips on ceramic and steel surfaces. Fuel and oil resistant outsole. Dual density sole unit. Full grain leather for long lasting protection. Standard : EN20345 S3