With a fun and bright design, your kids will love wearing the Giro(R) Youth Scamp(TM) Bike Helmet. The Scamp(TM) Helmet is perfect for your child with its Roc Loc Jr.(TM) 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(TM) Buckle makes for an easy fit. FEATURES: Adjustable youth bike helmet Roc Loc Jr.(TM) 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(TM) 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