Features Synthetic material upper Personalized Enduro series upper Personalized extra grip Enduro/Adventure compound rubber sole Stitched F.C.S. (Flex Control System) Injection moulded plastic protections Personalized rubber heat protector Adjustable velcro closure Replaceable/adjustable aluminium buckles Steel toe cap Padded inner lining Forma Drytex tubular lining (waterproof and breathable) sock Polyurethane nylon reinforcements / Soft polymer padding with memory foam I.S.S. (Incorporated Steel Shank) with anti-shock felt midsole Anti-bacterial replaceable footbed with A.P.S. (Air Pump System) A.P.S. System Air is pumped from a specific centralized position in the A.P.S. perforated footbed to the entire insole, consequently, air circulation within the boot keeps feet cool and comfortable.