With a fun and bright design, your kids will love wearing the Giro® Youth Scamp™ Bike Helmet. The Scamp™ Helmet is perfect for your child with its Roc Loc Jr.™ Fit System that features an easy to use dial for a true fit and will grow with your child as they get bigger. A built-in visor protects from the sun's rays while a PinchGaurd™ Buckle makes for an easy fit. FEATURES: Adjustable youth bike helmet Roc Loc Jr.™ Fit System for a custom and comfortable fit In-mold polycarbonate shell with EPS liner for maximum safety Ventilation: 8 vents Built-in visor for weather protection PinchGaurd™ Buckle for an easy fit Ponytail compatible Complies with U.S. CPSC Safety Standard for Bicycle Helmets for persons age 1 and older (Extended Head Protection) Style: 7067917 Bell Sizing: XS: 17.75"-19.25"/ 45-49 cm S:19.25"-21"/ 49-53 cm