TCX RT-Race Boots - Black/Dark GreyTCX RT Race Boots BENEFITS Avoids overextension of the ankle joint Precise fit that allows high levels of comfort and feel TECHNICAL FEATURES Anti torsion Double Flex Control System (DFC) to reduce the risk of over extension of the ankle joint Replaceable, abrasion resistant, polyurethane toe and heel sliders Ergonomic polyurethane heel counter with replaceable side magnesium slider Ergonomic polyurethane shin plate with air intakes Upper in