Enhanced protection in hazardous conditions UPPER Full grain leather Full leather external wrap, secured by 3 stainless steel, quick-release buckles 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 woollen top sock with microbial properties MIDSOLE Shank reinforcement for additional arch support Anti-penetration midsole available – 42607 (MTO) TOE CAP Aluminum SOLE Dual Density PU/Rubber – outersole 8mm thick (Heat-resistant up to 300°C) EN / ISO 20345