A venting system specific to the Smith brand, AirEvac featured on their goggles and helmets allows for an unobstructed flow of air through corresponding channels in both. Forward facing vents drawn in cool air, while those on the top and back of the helmet dispense excess heat, keeping the wearer cool even in warm conditions. Not only does this system keep you from melting on those warmer days, it also helps prevent your goggles from fogging up.