Rugged Style. Big Performance. Impressive Value. The Hex fuses a muscular, progressive style with the versatility of a trail riding helmet. It"s stocked with all the features you need for the mountain, including the sure comfort and stability of Roc Loc 5 and tool-free adjustment of our POV visor. Many riders swear it"s the best all-mountain helmet for the money, hands-down. The Hex is offered in an XL size with the Roc Loc 5 fit system, which measures 61 - 65cm.