The Wiley X Saber Classic Series. Neutral Slate Lenses offers an affordable and efficient protection to your eyes when engaged in sports or even while in your military training. The adjustable, patented Saber tipped temples are rubberized to keep the frames secure. It comes with 2.5mm, shatterproof polycarbonate lenses that are optically correct and excellent for duty wear or general safety. The newly developed nose piece is clear and adjustable, allowing you regulate the frame for. custom fit. The pliable felt brow bar keeps the frame snug against the forehead to ward off sweat and debris from getting in contact with your eyes. The mirrors utilize. Z-Oxide flash mirror coating and several layers blend together to eliminate glare – the most common cause of eye fatigue and strain. This Wiley X eyewear is ideal for the military servicemen, sports enthusiasts, hobbyists, and anyone else who enjoys wearing stylish sunglasses.