... air vent for maximum cooling comfortThe Helmet designed for cycling, skateboarding and rollerbladingFeatureCE,SGS approved helmet A sleek, Aerodynamic design, much ... sizes and colors are availableCustomized design is welcomed.Helmet safety Tips:Wear the helmet flat atop your head, not tilted back at ... to contact me.Give pictures for your reference Skate Helmet for kids&skate sport helmet&sport helmet