A track and street performance riding boot which 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. SMX-6 V2 Boots