When you try on the Crossbow®, you"ll discover it"s unlike any other ballistic eyeshield. Experience the Tri-Tech FitTM frame that achieves an amazing universal fit with max comfort and zero pressure points. Then notice the lenses. They won"t fog. That"s thanks to groundbreaking ClearZoneTM FlowCoat technology, engineered to eliminate fog inside and prevent scratches outside. As you stare down your objective through distortion-free ESSOPTICSTM, you"ll see just how optically precise vision can be. When you"re ready to switch tints, the innovative DedBoltTM Lens Lock pivots up for easy release, then clamps down for rock solid retention under impact. It"s from ESS, so of course the Crossbow is compliant with U.S. Federal OSHA, ANSI Z87.1+, CE EN 166 and U.S. MIL-PRF-31013. Form, Fit, Function...Perfected.