Protect your vision with our shooting Glasses. It is a must!!! These shatterproof, selenite, polycarbonate lenses are very reliable and trusted nationwide! Includes clear lenses, soft case, temples and elastic strap This patent pending system provides two functions in one: converting from a fashionable sunglass to low profile goggle. Its' ballistic, anti-fog lenses can be changed in seconds when weather or activity dictates the need. Seals the eye orbits providing protection from extreme changes in body temperature or weather temperature. The temples disengage with a push of a button and can be replaced with a snap loaded elastic headband. The SG-1 combines wind protective fashion with ballistic function. The SG-1's streamlined design fits better under all issued helmets and is more functional given the interchangeable, two lens package. Our wrap back technology drastically improves peripheral vision, plus the lenses can be interchanged providing day and night protection. Each ballistic lens is layered with our proprietary anti-fog, and scratch resistant coatings providing perfect optical clarity and protection. The SG-1 is currently the only goggle that truly functions with NVG's.