UPPER Full grain leather upper, Full leather external wrap, secured by 3 Velcro straps to protect the foot from sparks and metal burns entering the boot, LINING :The quarter lining is from an Industrial Ferrabelle non-woven material, The vamp lining is from a special Kevlar blend material and laminated to foil to reflect heat away from the boot, IN-SOCK & TOP SOCK. Non-woven material in-sock laminated to Kevlar, to protect the foot from heat transferance through the sole of the boot Anti-bacterial Energiser top sock with anti-microbial properties MIDSOLE Shank reinforcement for additional arch support Anti-penetration midsole available – 42604 (MTO) TOE CAP Aluminum SOLE Dual Density PU/Rubber Sole (Heat-resistant up to 300°C) EN / ISO 20345
