Downhill-Certified Performance: The Mainline helmet is built for intense, high-speed trails, offering the confidence to tackle everything from EWS races in Whistler to local enduro stages. Core Protection: Features full Koroyd coverage for lightweight, ventilated impact absorption and the MIPS Safety System, meeting U.S. CPSC, CE EN 1078, NTA8776 E-Bike, and ASTM F1952 Downhill standards. Cool Comfort: With 21 fixed vents, a hybrid X-Static/Ionic+ liner for odor control, and lightweight webbing, this helmet keeps airflow steady and vision clear for goggles or glasses. Customizable Fit: Includes three sets of washable cheek pads, two crown liners, two neck rolls, and an adjustable visor with three positions for optimal comfort and fit.