Shoei RF-1100 Light Silver Helmet Medium AIM+ Shell Construction: Aerodynamic properties are maximized through extensive wind tunnel and professional riders feedback High performance fiber materials are combined with extremely elastic organic fibers to create shell structure that is ultra lightweight, rigid and resilient 5 Shell Sizes and six EPS liner configurations present increased fit options that comfortably fit most head sizes A third generation Tail Fin, integrated into the bottom rear beading in combination with the Shell-Integrated Spoiler, allows smooth airflow that reduces drag and lift CW-1 Face Shield The CW-1, three-dimensionally curved shield is both wider and taller than the CX-1V it replaces Q.R.S.A. (Quick Release Self-Adjusting) Base Plate System Q.R.S.A. base plate allows for tool-less face shield removal and installation. Every time the shield is lowered, the spring-loaded base plate (U.S. patent pending 11/799935) pulls the shield back to contact the window beading evenly, ensuring a wind and waterproof seal between shield and helmet Variable Ventilation System Upper Air Intake Vent is positioned to maximize air volume into the helmet interior Top outlet vent is separate from the Shell- Integrated Spoiler, allowing it to be positioned for optimum flow-through ventilation Four rear outlet vents allow for adjustment of airflow based on riding position Enlarged lower air intake/defroster vent reduces shield fogging and increases ventilation The rear/neck outlets allow for effective air exhaust Breath guard and chin curtain included Interior System The entire interior lining (cheek pads, crown liner and chin strap covers) is easily removed to allow cleaning Each component of the inner liner is ergonomically designed to offer the ultimate in safety, fit and comfort Eyeglass compatible Tech Specs 5 shell sizes Weight: 3.54 Pounds / 1604grams (based on size medium / solid color) DOT and Snell M2010 approved