With an easy adjustable fit and cool ventilation, your child will feel comfortable wearing the Giro(R) Youth Raze(TM) Bike Helmet. The Roc Loc(R) Sport Fit system is quick to adjust and ensures a stable fit. This helmet has a removable visor and a reflective decal on the back for added safety. FEATURES: Lightweight and extremely durable Roc Loc(R) Sport Fit system offers a 7cm adjustment range and easily with one hand Ventilation: 22 vents In-mold polycarbonate shell with EPS foam liner for impact absorption Full coverage shell design Removable snap-fit visor with reinforced anchors helps block the sun from their eyes Reflective decal on the back Complies with U.S. CPSC Safety Standard for Bicycle Helmets for persons age 1 and older SIZING: Universal Youth Size: 19.75" - 22.5" / 50 - 57cm