The HJC RPHA 11 Motorcycle Helmet represents the culmination of all their R&D development.Premium Integrated Matrix plus constructionWind Tunnel TestedAerodynamic Top Vents with precision controlWide Visor Aperture for increased view and peripheral visionMoisture-wicking, anti-bacterial removable linerGlasses GrooveQuick release Cheek Pads and removable Chin curtainRapid fire Visor replacement systemEnhanced shield dual lock systemClear and Light Tint Visor with Anti-fog insert lens included5 Year WarrantyACU Gold and ECE 22.05 approvedThe HJC RPHA 11 Motorcycle Helmet features a PIM (Premium Integrated Matrix) outer shell construction and is a combination of three different materials, carbon fibre, aramid and fibreglass. This combination of material creates a unique woven blend that produces a shell with both remarkable strength and impressive weight savings (average weight 1300g +/- 50g dependant on size).The Helmet has HJC's Rapid-fire shield replacement system, this simple but high