Bell KC7 helmet with CMR homologation (mandatory for pilots up to 16 years old) special edition Lewis Hamilton. FEATURES: Lightweight carbon shell: 1185g in sizes 52 to 56 and 1230g in sizes 54 to 59 (+ or - 3%). Multi-piece, multi-density interior to maximize energy absorption and impact performance. Injection molded optical grade 2MM Double Shielded Anti-Glare (DSAF) visor for anti-fog control and superior visibility. Powerful and efficient top bar and chin bar ventilation system with 14 air intake and exhaust channels for maximum ventilation. Air intake, side air extractors, rear spoiler, top and chin gurneys included. Optimized shell design to improve aerodynamic performance, reduce internal noise and improve energy. KC7-CMR is NOT compatible with HANS anchors. Synthetic rubber gasket to prevent dirt and water from entering the helmet. Screen kit: SE07 2MM, SV (SE07) Homologation: Snell-FIA CMR-2016 Helmet bag included Sizes: 54 to 59