Giro Scamp YouthThe Giro Scamp is packed with amazing features, including some of the same elements found in our best adult helmets, all in a smaller package designed to fit your child. The Roc Loc(R) Jr. fit system with pinch-guard buckle provides an easy way to fit your kid's helmet quickly and securely. With a wide size range, your child can use this helmet as they grow from balance bikes to training wheels. The design is inspired by the adults' Montaro and Montara and since the Scamp is available in a range of kid-friendly colors and designs, your child will be excited to wear it every time they ride.FEATURESIn-mold constructionBuilt-in visorPinch-guard bucklePonytail compatibleIn-mold polycarbonate shell with EPS LinerRoc Loc Jr.8 ventsHELMET SIZE CHARTSizeSmall/MediumMedium/LargeToddlerHead Diameter (in)18-19.75"19.75-21.5018.75-20.50Head Diameter(cm)46-5050-5448-52 | Giro Scamp Youth Helmet Size Extra Small in Matte Black Multi