Upper : Breathable, Full Grain Leather with Textile Tongue and Collar. (Leather 1.8-2.0mm). Midsole : Textile Pierce Resistant Midsole – Min. Toe Cap : Steel Toe Cap Resistant to 200J. Sole Unit: Lightweight Dual Density PU/PU Soling System with Anti-static Properties, Shock Absorption, Heat Resistance to 120°C and SRC rated Slip Resistance.