Big berms, rock gardens or flowy rollers. No matter the trail, get after it with confidence in the Smith Engage mountain bike helmet. Zonal KOROYD(TM) complements MipsA(R) for energy-absorbing impact protection in the event of a crash. A dial adjustable fit and extended back coverage provide a locked-in feel. On hot days or exposed climbs, 20 fixed vents and our AirEvac ventilation system keep you cool and comfortable. Channels on the front make it easy to stow eyewear and a two-position visor rotates up for on-the-go goggle storage. Product DetailsProtectionLightweight in-mold construction, Zonal KOROYDA(R) coverage for lightweight, energy-absorbing and ventilated impact protectionMipsA(R) Brain Protection System reduces rotational forces caused by angled impacts to the headCPSC and CE EN 1078 certifiedFit / IntegrationAdjustable dial fit system for a customized fitDesigned for ultimate integration with Smith performance eyewear for maximum comfort, venting and storage convenienceAirEvac ventilation system integrates with Smith eyewear for fog-free lensesFeatures:- 21 fixed vents for consistent airflow Performance comfort lining Lightweight, low-bulk single layer webbing Two position adjustable visor Weight (Size M, MipsA(R)): 12 oz / 350 g Additional Specs