The Surge helmet from Bell Sports is designed with aggressive lines and comes loaded with features for the next generation of shredders. Equipped with the True Fit system with safety lights, seventeen vents to keep extra cool, BaseGuard for durability, tapeless design, and side squeeze buckles with PinchGuard to ensure comfort and ease of use. CPSC 1203 Bike safety certified. For ages 14 and up. Fits head sizes 22.1-23.6" (56-60cm).