Adult Cycling Helmet with Detachable Chin Guard and Visor by CAIRBULL for Mountain Biking

Detachable chain guard and visor makes helmet switch easily between a half face and full face helmet. In-mold construction with hard polycarbonate shell and EPS lining for impact resistance and protection. 18 air vents take away excess heat to keep you cool and comfortable. Adjustable dial system fits head circumference: 54-61cm (21.2"-24"). Camera port and goggles port allow you to mount your camera and goggles on helmet.