When you try on the ESS Crossbow, you'll discover it's unlike any other ballistic eyeshield. Experience the Tri-Tech Fit 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 ClearZone FlowCoat technology, engineered to eliminate fog inside and prevent scratches outside.As you stare down your objective through distortion-free ESSOPTICS, you'll see just how optically precise vision can be. When you're ready to switch tints, the innovative DedBolt Lens Lock pivots up for easy release, then clamps down for rock solid retention under impact.