Giro Kid's Rascal Bike Helmet (High Yellow/Bright Green Wallpaper, Universal Child Medium/Large) Mountain bike styling with the ease and comfort of OneStep Fit Technology OneStep self-adjusting fit system In-mold polycarbonate shell construction with EPS liner 12 vents for great ventilation Built-in visor, pinch-proof visor, integrated bug net and flashing LED lights for visibility