72544x376 Troxel HelmetsDialFit systemMesh covered ventsAthletic Low ProfileMatte Duratec™ finishFlexTip VisorFlipFold™ removable washableBuilt to offer hard-core and demanding riders unmatched stability and comfort during the most extreme riding. It's the perfect blend of technology and style.Sizes: S (6-1/2 to 6-7/8), M (7 to 7-3/8), L (7-3/8 to 7-3/4)