What Our Gearhead(R) Experts Are Saying: "I like the Radix because it balances weight, coverage, and ventilation better than most helmets in its class. The Roc Loc 5 Mips system gives a secure fit without hotspots, and the Wind Tunnel cooling really works on long climbs. The visor range is great too-easy one-handed adjustments while riding." We count on the Giro Radix Mips Helmet when long trail days call for comfort, coverage, and dependable protection. The in-mold construction keeps weight low while increasing durability, and the extended coverage inspires confidence on technical terrain. With the Integrated Mips(R) system working seamlessly inside the Roc Loc(R) 5 Mips fit system, we get a stable, customizable fit that adds rotational-impact protection without sacrificing comfort. On warm days, the Wind Tunnel(TM) ventilation system shines. Fresh air moves efficiently across the scalp and channels heat out the back, keeping us cool through punchy climbs, rolling descents, and all-day adventures. The P. O. V.(TM) visor adjusts easily for changing light or goggle storage, rounding out a helmet built for riders who want lightweight versatility and consistent performance on every trail.