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-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-8216-PB-SNC-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