What happens if you are in the field, working beneath a vehicle, and a 1.1 lb. projectile impacts your sunglasses from a 50-inch height If you are wearing Gargoyles Vortex sunglasses, nothing. They take the hit. You are wearing very purposefully designed highly tactical protection. Vortex meets military specification for high velocity and high mass impact. They also exceed all ANSI Z87.1 protection specifications, including, but not limited to, impressive optical clarity. And thanks to the TR90 NZZ frames, even the Gargoyles G-Loc hinges are 11 times stronger than regular TR90. The browbar and temples have co-injected rubber, which provides comfort, stability, flexibility and grip. With anti-reflective and Tri Tech oleophobic treatments, the lenses control harsh light and are both water and smudge resistant. Vortex is serious strength, dependability and protection for whatever comes your way. Gargoyles Vortex Performance Sunglasses Clear Lens Blk Frame This product is manufacturered by Gargoyles