Protective Steel Midsole (resistant at perforation 1100N), Steel Toe Cap (resistant to impact 200J and compression 15Kn), PU outsole: anti vibration, antistatic, resistance to fuel oil, Energy absorption on seat region, WR full grain black leather. This boot offers a protective steel midsole and toe cap, along with a durable PU outsole that is anti-vibration, antistatic, and resistant to fuel oil. It also features energy absorption in the seat region and WR full grain black leather uppers.