Bluegrass, Main Street, white picket fences and the Americana Helmet. We can't think of anything more nostalgically American. FidlockA(R) magnetic buckleRemovable spin dial fit systemDetachable visor Durable, injection-molded ABS shell with protective EPS foamCrumple Zone(TM) in EPS is engineered to disperse energy on impactEleven vents and internal EPS channeling for maximum airflowThree sets of foam pads for customized fit360Adeg reflectivityCPSC 16 CFR 1203 and ASTM F1492 certified for cycling, scooting, and skatingFor proper fit, measure your head before ordering.