The RT-Race Pro Air motorbike boot is the flagship of the Racing line and is the result of collaboration between the TCX R&D department and MotoGP? riders. RT-Race Pro Air incorporates Fasten Fit Control, a quick lacing system integrated into the boot lining that ensures the upper hugs the foot perfectly and allows for millimetre-precise adjustment of the fit. The boot's closure system features an aluminium lever with micrometric adjustment and quick release that perfectly adapts the upper to the different anatomy of the calf, and a side zip with stretch panel. The TCX RT-Race Pro Air motorbike boots are equipped with the Double Flex Control anti-tension system, a joint made of polyurethane positioned in the ankle area that can control movement to the millimetre and provides support as well as optimal flexibility of the joint to avoid dangerous twisting and possible injuries. The upper material made of highly wear-resistant microfibre is perforated to ensure optimal ventilation of the foot and maintain perfect comfort even in high temperatures. The inner lining is made of breathable AIR TECH mesh fabric and has padding with different thicknesses positioned in the ankle area to provide maximum comfort. The 'Burnout' sole, manufactured by TCX in collaboration with the Michelin Research Centre, is inspired by the Michelin 'Power Supersport Evo' tyre and features a dual-compound tread pattern with differentiated grip zones designed to ensure greater grip on the footpegs and controls, as well as greater wear and abrasion resistance against asphalt. The tread is fully integrated into the upper and the heel has a sloping angle so that optimal contact with the footpegs is guaranteed. <.