One of the most popular Randolph Engineering Aviator Sunglasses models are the 23K Gold Frame, Bayonet Temple, AGX Non-Polarized Lens Aviator Sunglasses. Made in America, each pair exceed U.S. DoD Mil-Spec 25948J standards for visual acuity, durability and function. The 18% nickel silver frames are 23K Gold plated and the finish is covered with a clear coat giving the frames a beautiful finish that will last for many years. The optical quality precision ground mineral crown glass lenses are distortion free and will block 98-100% of the harmful uv rays. Randolph Engineering 23K Gold Frame Bayonet Temple AGX Non-Polarized Lens Aviator Sunglasses come in 3 sizes: 52mm (AF21614), 55mm (AF51614) and 58mm (AF81614).