The Ollie helmet blends classic multisport design with bold new graphics. Features hard-shell construction for protection on the skate park pump track or trails. Eight cooling vents ensure a cool ride and the side squeeze buckle makes for easy chin strap adjustments. Dual certified CPSC 1203 bike and ASTM FRNUM skate safety compliant. For ages 8-14. Fits head sizes 54-58 cm.