Extra-large helmets for superior safety. Based on the M3s, the Bell M3 Extra helmets are the first truly large-size helmets with a shell that is 5 percent larger than a standard extra-large helmet's. These multi-purpose helmets feature a full liner, roomy interior, and superior ventilation. In addition, the M3 Extras feature Bell's SRV friction shield system. This new system has a slide mechanism that allows the driver to adjust the tension on the shield, allowing for multiple opening positions. When properly adjusted and in the locked position, the SRV system helps reduce the possibility of the shield opening during an impact. Additional features include: * Light-weave composite shell * Standard aerodynamics * Superior chin bar, forehead, and top ventilation * Large eyeport size * 281-SRV shield * Full coverage E-Max Plus liner * Comfortable Complex/Carbon X interior * Snell SA05 certification * Made in the USA