Deftly engineered for the demands of the modern-day mountain biker, the Altis utilizes 100% proprietary Smartshock suspended rotational system coupled with 14 ventilation ports resulting in a safe, breathable, and budget-friendly trail helmet. The high-density EPS foam injection molded liner with polycarbonate shell is constructed with size specific molds (XS/S, S/M, and L/XL) to ensure the best fit possible. Add in the adjustable visor for a cohesive storage of all 100% eyewear and goggles and youre ready to hit the trails.