The Alpinestars Tech 10 Supervented motocross boots are the latest off-road boot incarnation from Alpinestars and have benefitted from the evolution of all their predecessors in the Alpinestars motocross range. The revolutionary external structure features an ultra-low-profile design to minimise weight and maximise flexibility. The Tech 10 supervented boots come with an innovative biomechanical inner bootie for the ultimate level of support and safety. Torsion bars control ankle and leg rotation while allowing freedom of movement. The bootie structure features PU protection and shock-absorbing padding on the heel and ankles, as well as an ultra-thin and flexible forefoot area for increased feeling. The perforated bootie is washable and replaceable to keep your feet fresh. The Tech 10 boots are made from full-grain leather and PU to give abrasion resistance as well as a lighter feel. PU guards the toes, foot, heel, ankle, calf and shin with extra hard compounds on the toe-box, heel and Achilles tendon for added protection. An innovative PU spine protects the heel and controls flex. Plus, these also come with a hyperextension guard. The precision fit interior features a new poly fabric lining with open-cell foam and a shock-absorbing shin pad. Two large inlet ports on front of boot with exhausts at back for optimised levels of airflow and heat exchange. Alpinestars' exclusive dual compound sole is seamlessly integrated to the multi-density foot base structure with built-in support. It gives superior durability, grip, feel and a high level of structural rigidity. The advanced closure system features three techno-polymer and aluminium buckles for easy adjustability with a precise, secure and streamlined fit. The buckles feature memory, a quick release/locking system and a self-aligning design for secure and precise closure with a 3-buckle system that works in conjunction with the entire internal structure to provide excellent support and flexibility. Heat-resistant panels on the inner side of the boot also offer grip. The Alpinestars Tech 10 have new form-fitting PU gaskets that seal water out of the boot to keep your feet dry.