The new Arai RX-7 GP racing helmet offers features that have never before been available on any other helmet. It is the result of Arai&39, s pursuit of perfection in which all the considerable knowledge, experience & know how of Arai is concentrated. Stability of the Arai RX-7 GP is enhanced thanks to the adjustable Air Wing spoiler, reducing drag, turbulence & buffeting. The new Diffuser Type 10 increases airflow efficiency considerably for more efficient interior ventilation & lower noise levels. The &lsquo, &39, PB SNC&39, &39, outer shell for instance is completely new with the Peripheral Belt offering incredible rigidity & strength to the already immensely strong SNC (Structural Net Composite) Super Fibre shell construction. With the RX-7 GP Arai has once more set the standard in the premium helmet class. fibreglass PB SNC technology DRY-COOL®, lining (100% polyester) Detachable, washable cheek pads Pinlock anti-fog visor enhanced air-vent system with diffusers Air outlet at rearair-vents in visor Double-D chin strap LRS quick-release visor system visor mechanism with Anti-Fog setting fold-out wind shield detachable breath deflector paintable outer shell ergonomic moulded outer shell aerodynamic helmet surface Choice of 4 shell sizes for a perfect fit detachable neck piece Emergency tabs (cheekpads to extract) spoiler at backside to stabilize the helmet & to reduce wind noises ECE 22.05 SNELL M2010