From sunrise to sunset, the Radix Mips designed by Giro is the ideal mountain bike helmet for riding comfortably on the most beautiful trails of the Aravis or the Mercantour, with complete confidence. The Roc Loc® 5.5 MIPS system allows you to customize the fit and feel, for long-lasting comfort and better protection. The 25 ventilation channels ensure perfect airflow, even on the hottest summer days. In-Mold polycarbonate shell with EPS liner P.O.V visor Occipital retention: Roc Loc® 5.5 MIPS Wind Tunnel vents with internal channels CoolFit antimicrobial padding 25 ventilation ducts Integrated MIPS technology Size: S: 51-55 - M: 55-59 Weight: 300 g Giro Radix Mips - Mountain bike Helmet