Affordable bike helmet offers stylish protection Ten top vents and three rear vents for a cool ride Smart Fit system helps to ensure a comfortable fit PinchGuard buckle specially designed to prevent from pinching your neck Small/Medium fits head sizes 21-5/8″ to 22-1/2″; Medium/Large fits head sizes 23-1/4″ to 24″ Product DescriptionBell Radar is the [...]