The Radix™ combines rugged style and durability to meet the demands of core trail riders, with the coverage, lightweight and ventilation riders need to ride comfortably and confidently, all day. The highly adjustable Roc Loc® 5 system allows you to customize fit/feel for enhanced stability and long-range comfort. The P.O.V.™ visor offers 15 degrees of adjustment, and the tough polycarbonate outer shell is fused permanently to the EPS foam liner using our In-Mold™ construction process, to enhance durability and ventilation without excess bulk. Features: Deep coverage P.O.V.™ visor Cool-fit anti-microbial padding Construction Full-wrap In-Mold polycarbonate shell with EPS liner Fit System Roc Loc® 5 Ventilation 25 Wind Tunnel™ vents with internal channeling Super Fit Sizes: S 20”–21.75” / 51–55cm M 21.75”–23.25” / 55–59cm L 23.25”–24.75” / 59–63cm