SIDI MAG-1 MOTORCYCLE BOOTS (BLACK, SIZE 11 / 45) Lightweight, yet ultra-protective. Almost 1 pound lighter than Vortice boot Micrometric-3 Magnetic Closure Mechanism, All Bolt-On Parts are Replaceable Arch and Achilles areas covers with Sidi exclusive textile and molded panels Techno VR Adjustable Calf System, Anti-Twist External Ankle Support Braces BLACK, SIZE 11 / 45