Our new Atomic Four Q HD combines a timeless cylindrical look with a big dose of fresh style and attitude. Inside they use our latest cylindrical Fusion Double Lens (FDL) Technology. This next-generation lens uses lamination instead of an additional foam layer between lenses, meaning a field of vision up to 20% larger, no refractions, reflections or fogging. The HD Lens Technology uses crystals to improve snow visibility in all conditions. The Atomic Quick Click System means you can also change your lens in seconds to adapt to a sudden weather change. You get an extra HD lens in the box – put this in your pack and you really are prepared for all possible weather conditions on the mountain. Ready, set, go!