The team at Smith, having spent decades reducing lens fogging, knows quite a bit about ventilation. One look at the Forefront Helmet, with its breathable Koroyd tube structure, shows how willing they are to depart from convention to create a product that's truly great. The Koroyd tubes are tiny, extruded, co polymer tubes that absorb about 30% more impact than traditional EPS foam, and, due to their hollow nature, allow air to flow freely in a way that foam simply can't. On top of that, the microstructures allow for less material to be used in the construction of the helmet, which adds up to a highly protective helmet that weighs in at just about 285grams. It's not just a cool looking helmet that protects your head, though. The AirEvac system, borrowed from its snow helmets, moves hot air away from your glasses or goggles to keep them fog free. The visor has two positions to keep the sun out of your eyes, and there's also a threaded brass insert on the top of the helmet designed to accept aftermarket mounting kits for GoPro cameras and Light and Motion lights. The helmet's fit is secured via Smith's VaporFit retention system, which anyone familiar with Smith's snow line will be familiar with.