Alpinestars SMX-3 Men's Motorcycle Street Boots (Black, EU Size 47) Advanced lightweight microfiber main upper for durability and repeated abrasion resistance Alpinestars' exclusive compound rubber sole promotes improved feel and grip, water dispersion and durability Alpinestars new buckle closure system offers a rapid and secure fit over the instep area and improved foot support while permitting excellent levels of flex control Combination elastic-mounted medial zipper with additional, wide aperture Velcro closure flap on medial side, offers extra protection against the bike The S-MX 3 boot is CE certified