We are now including a brand-new ESS frame with each used pair of glasses making this an even better deal. The ESS Crossbow are APEL (Army Authorized Protective Eyewear List) and are the military's standard go to ballistic eye-pro that offers both performance and eye protection. Why are they so good? The Tri-Tech Fit™ frame is made to have a universal fit with zero pressure points making them comfortable for all day use. The Crossbow lenses also won't fog due to their ClearZone™ FlowCoat technology and are designed to prevent scratches. If you have never worn a Crossbow you will notice how clear objects are. That is because Crossbow lenses are made distortion-free and have a simple and quick lens change out feature making them a versatile option for any use. The military trusts these glasses and so should you. All ESS Crossbow Glasses ship with a brand new Frame in the factory bag.