The Alpinestars SMX-6 V2 track and street performance riding boot incorporates a newly designed upper for flexibility. The SMX-6 V2 is superbly anatomically profiled, packed with innovative features and has the latest advancements in Alpinestars’ performance footwear design and development. Every component on the CE certified SMX-6 V2 has been carefully designed to give riders a crucial performance edge in the form of protection innovations, improved ergonomics and comfort features. Alpinestars’ innovative TPU lateral ankle brace protection provides a biomechanical support between lateral top calf/shin and ankle and offers improved structural integrity, protection against impact shocks, repeated abrasion resistance and flex support. High modulus TPU injected shin guard, calf protector, heel counter, shift pad, ankle brace and toe slider for improved shock protection and durability.Also available in waterproof Drystar and Gore-Tex versions!