evo.com | Giro Bike Helmets > The Giro Radix MIPS Bike Helmet has 25 vents, aggressive styling, and a visor that flips up to accommodate your goggles as you climb. Because if you're looking at this helmet, you know you ride with goggles. With super comfortable and safe Roc Loc(R) 5.5 MIPS internals, you're set to charge it. MIPS(R) Equipped MIPS technology is designed to reduce rotational force to the brain in certain types of glancing or angled blows - this is accomplished by allowing the inner frame of the helmet to move slightly relative to the outer shell. Polycarbonate Shell with EPS Liner In-Mold Construction In-mold construction fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows Giro to sculpt better ventilation systems, so In-mold helmets can be lighter and cooler than traditional helmets. Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older Wind Tunnel(TM) Ventilation Giro helmets are developed utilizing the proprietary Wind Tunnel(TM) ventilation system, which combines active vents with internal exhaust channels that thrust cool, fresh air over and around the riders head-while forcing heat and stale air out. This significant increase in air channeling makes a difference that riders will immediately feel and appreciate. | Giro Radix MIPS Bike Helmet 2025 - Small in Black