AIR PUMP SYSTEM: adjustable cheek pad air system provides a comfortable custom fit & eliminates wind noise. The unique Air Pump System delivers a customer fit via air-adjustable cheek pads that inflate to the shape of the face by a few pumps. One Touch integrated SunShield with "Damper Gear": HJC's all-new Sun Visor System with smooth lever for reduced noise. Rapid-fire shield replacement system: Simple and secure shield ratchet system provides ultra-quick, tool-less removal and installation. Double D ring fastening system. Requires HJC HJ-09 replacement visors.