Giro Fathom Mountain Bike Bicycle Helmet

Giro Fathom Mountain Bike Bicycle Helmet. Built on the same platform as Giro's legendary Atmos, the Giro Fathom Mountain Bike Bicycle Helmet provides amazing ventilation, thanks to an innovative internal reinforcement structure and its sleek, compact design combines groundbreaking style with off road performance. In Mold polycarbonate shell with EPS liner provides excellent impact protection and allows for bigger vents, all while remaining incredibly lightweight. New Thermoformed SL Roll Cage, a polycarbonate skeleton fused throughout the Bicycle Helmet's impact absorbing EPS foam liner, gives structural support, impact dispersion and penetration resistance. 23 Wind Tunnel vents cool your entire head as it forces heat and stale air to the outside. P.O.V. visor allows 15 of vertical adjustment on the fly and Roc Loc 5 retention system puts unrivaled fit and adjustability at your fingertips.