Ionos Helmet LG Matte Black/Livestrong

Giro's most technologically advanced and highly ventilated helmet features an updated Roc Loc 5 fit system, with a rear dial that allows you to single handedly adjust the fit in seconds. The Ionos has 21 massive vents, coupled with an intricate network of internal channels, creating a superior cooling system called Wind Tunnel Ventilation. A visible weave of composite reinforcement runs through the helmet's body and around the vents to fortify the helmet structure. X-Static silver ion fibers, woven into the helmet padding, provide an antimicrobial treatment to keep the helmet odor free. CPSC certified.