Trail-Ready Performance Using Giro's In-mould construction method, when it comes to head protection the Radix Cycle Helmet (MIPS) is a tough and tenacious performer. AN EPS liner provides impact protection in the event of a crash, soaking up forces that would otherwise directly hit your head. Fused to the shock-absorbing liner is a durable polycarbonate outer shell, keeping weight to a minimum while taking on those knocks and scratches from trailside overhang. You also get Giro's P.O.V. Visor, with 15 degrees of up-down adjustment. Three-riding positions get it in just the right place to keep the sun off the eyes, plus a high position to let you pull goggles up above your brow.  Multi-Directional Impact Protection System (MIPS) As you'd expect, all Giro helmets are designed to not only meet but also exceed stringent safety standards. And with MIPS you enjoy an extra level of brain-protecting technology, designed to redirect energy and provide more protection in certain impacts. • MIPS is a Brain Protection System • Rotational motion can cause brain injuries • The low friction layer allows a sliding movement of 10–15 mm, in all directions, reducing rotational motion to the brain during impact • MIPS adds protection Feel the Rush Heat and sweat are quick to build when mountain biking. But here the Wind Tunnel™ ventilation of the Radix comes into play. This system has carefully positioned vents, 25 in total, bringing in fresh air to the front where it meets internal exhaust channels that thrust cool, fresh air over and around your head while forcing heat and stale air out. This significant increase in air channelling makes a difference that riders will immediately feel and appreciate. Roc Loc® 5.5 MIPS® Fit System Leading the way in ease of adjustability and comfort, the Roc Loc® 5.5 MIPS® Fit System lets you dial in the fit of your helmet quickly and easily. It allows for precise single-handed adjustment via the rear dial as well as fore-aft tilt adjustment. It’s lighter than comparable systems too, making it the ultimate in skull-hugging luxury.