The off-road world is a dirty, tough place. Chunks of rock and dirt mean business when launched by roosting tires, and even when its muddy, hitting the ground is always hard. Thats why we sweated the details on the MX-9, loading it with a tough polycarbonate shell, MIPS energy management system, an adjustable visor, Velocity Flow ventilation, and a removable, washable, anti-microbial liner for when the time comes to hose down. The MX-9 MIPS packs all these features into one helmet, delivering exceptional value and pro-caliber performance. DOT approved. Meets the FMVSS 218 Standard, product also meets requirements imposed by the California Air Resources Board (CARB)