Bursting with performance features like In-mould construction, Wind Tunnel ventilation and the benchmark RocLoc 5 fit system, the Saros has a sleek, contemporary style and a subtle silhouetteThe In-mould construction process fuses the outer shell with the impact-absorbing EPS liner during the moulding process, and reinforces areas around vents and ribs, creating an exoskeletonThis allows the helmet design to be lighter, more durable, and better ventilated than traditional designsGiro helmets are developed utilizing their proprietary Wind Tunnel ventilation system, which combines active vents with internal exhaust channels that thrust fresh, cool air over and around the riders head while forcing heat and stale air out at the same timeA great helmet is so comfortable that once its on, it virtually disappears. The Super Fit system is based on 'human scale factors' data and over 20 years of crafting helmets for the best bike riders in the world, and the result is a helmet that feels as if it were custom made for youMeets CE EN1078 certificationS: 51-55cmM: 55-59cmL: 59-63cm