Giro: RUGGED ADVENTURER The Radix™ MIPS® 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 highlyadjustable Roc Loc® 5.5 MIPS system allows you to customize fit/feel for enhanced stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact.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. SPECS- Integrated MIPS® technology- Deep coverage- P.O.V.™ visor- Cool-fit anti-microbial paddingCONSTRUCTION- Full-wrap In-Mold polycarbonate shell with EPS linerFIT SYSTEM- Roc Loc® 5.5 MIPSVENTILATION- 25 Wind Tunnel™ vents with internal channelingSUPER FIT™ SIZES- S 20”–21.75” / 51–55cm- M 21.75”–23.25” / 55–59cm- L 23.25”–24.75” / 59–63cm- XL 24”–25.55” / 61–65cm