Shell: High Quality Polypropylene, Asymmetrical Streamline Shell, Total Ventilation Intakes; Cuff: Streamline Asymmetrical Freestyle Design; Closure: Die-Cast Alu Upper Buckle and Instep Micrometric Buckles, Asymmetrical Fast Flowing Lacing Wrap; Cushioning: Integrated Shock Absorber Device; Liner: Leather Lining, Anatomically Padded for Enhanced Stability; Frame: Extruded Aluminium Espace "3 Arch Design"; Wheels: Roces 110mm-85A; Bearings: ABEC 7; Spacers: Aluminum; Axles: Zero Clearance; Rocker Washers: Aluminum; Stopper: Supplied with Brake