A boot for track and road performance riding that integrates a newly developed upper for flexibility, the SMX-6 V2 is also wonderfully anatomically cut, full of groundbreaking features and has the latest advances in Alpinestars racing shoe design and development. Every single part in the CE certified SMX-6 V2 has been carefully designed to deliver riders the extremely important peak performance: protection innovations, improved ergonomics and comfort properties. Newly developed boot upper integrates groundbreaking front, rear bellows and rear calf area for superior levels of flexibility. Microfibre upper for excellent durability and abrasion resistance. Ergonomic strip provides higher forefoot wind performance to allow significantly higher control on the levers, and for superior extensive foot profile, carrying fit and comfort. - Alpinestar's groundbreaking lateral TPU ankle splint protector provides biomechanical support between lateral calf/shin and ankle and provides improved structural integrity, impact protection, abrasion resistance and flex support. - Vents on heel cap and shin guards as well as breathable mesh inserts (vented version exclusive) improve comfort and reduce fatigue on short or long journeys. - Shin and calf protection, heel cap, gear cushion, ankle splint and toe slider made of injected high quality module TPU for improved impact protection and durability. Double-density ankle protector on the medial side is layered under the upper material and provides protection performance in key areas. Built-in, replaceable grinders made of bi-injected TPU are characterised by the simple screw mounting concept for a quick and easy...