Details Help your child enjoy their first rides with Giro's Scamp helmet. Equipped with everything from a pinch-guard buckle to a ROC LOC JR. adjustable fit system that makes fitting it correctly a breeze. The Scamp is packed with amazing features, including some of the same elements found in their best adults helmets, all in a smaller package designed to fit your child. With a wide size range, your child can use this helmet as they grow from balance bikes to training wheels. With all of the fun designs and colors, your kid will be excited to wear it every time they ride. Construction In-Mold construction Full hardbody shell Compact shape Fit Secure and fast fit adjustments Pinch-guard buckle Ventilation 8 vents Details Wide size range In-Mold construction Enhanced durability and reduced weight Fuses a polycarbonate outer shell with an impact-absorbing foam liner Roc Loc JR Fit system Simple, durable, dial fit system Specifically shaped to match the curvature of a child's head Large rubberized knob makes it easy for adults to help adjust their helmet quickly Helmet Size XS= 47-51 cm/ 18.5-20" S= 51-55 cm/ 20-21.65" Weight N/A Giro Scamp Helmet Child