Whether it's hard-charging trails or hammering hills, the 100% ALTEC is the rider's choice for an incredibly lightweight, ventilated and protective trail helmet. Featuring the Smartshock® Rotational Protection, the ALTEC's patented Smartshock® elastomers begin defusing rotational crash energy immediately upon impact.Key features:Smartshock® Rotational Protective System (14 point).Multi-Density EPS foam injection molded with polycarbonate in size specific molds (XS/S, S/M and LXL).Massive airflow with an impressive 15 ventilation ports.Expanded coverage while still lightweight.Integrated sunglass storage system.Multi-point adjustable visor designed for maximum vision and goggle stowage.Washable, moisture-wicking anti-microbial liner.Adjustable ratcheting fi tment system.Fidlock SNAP magnetic buckle (NEW for 2021).