Vented microfibre upper Injection moulded thermo-set protectors Plastic replaceable calf sensor Replaceable magnesium toe sensor Velcro and zip closure Rear buckle pump ratchet closure Protective plastic heel insert Plastic gear pad protection Rubberised PU heat protector Airflow mesh lining Extra soft polyurethane nylon reinforcements F.C.S (Flex cotrol system) with anti-scratch bike frame Double density anti-slippery/oil rubber Forma racing sole TPU dual flex midsole and anti shock EVA midsole Antibacterial replaceabl footbed with APS Air ventilation pockets