This aviator sun glass has been a favorite among American military pilots for many years. You can't beat the look of this sunglass, with its classic aviator styling it will always be in style. These sunglasses feature sturdy frame construction true to military specifications with a double bridge for extra durability that normal wire frame aviators just don't have. Polarized Heavy Duty lenses give you better clarity and reduce eye fatigue by cutting out glare from reflective surfaces. They're great for fishing, hiking, sports, and driving. The bayonet style temples can be comfortably worn under a helmet or headphones, without having to remove them to put on or take off your shades. The black ultra high quality optical Rx-able frames (59-16-140) could be fitted with your own prescription lenses. They provide 100 percent UV400 protection against potentially harmful UVA and UVB rays. Measures 47 mm tall, 143 mm wide and 158 mm long.