Durable, lightweight microfiber upper Over-injected front and side panel to allow an easy step-in and a precise fit around the foot/leg Padded rear flex area for better comfort Abrasion-resistant microfiber heat guard FFC Fasten Fit Control lacing system Soft microfiber gaiter for a perfect fit around the calf Air Tech breathable lining soft touch mesh combined with double density foam for superior comfort around the ankle DFC Double Flex Control System Polyurethane shin plate with iron mesh air intakes and micro injections Polyurethane shift pad integrated in the sole Ergonomically designed polyurethane heel counter Replaceable abrasion-resistant polyurethane toe slider Replaceable magnesium and polyurethane heel sliders Outside elastic zipper and VELCRO brand tab closure Micro-adjustable aluminum buckle and polyurethane-toothed band to allow perfect fastening of the shin plate around the calf Replaceable anatomic insole Reinforced midsole with differentiated thickness Lightweight, mono compound rubber sole