Precision Optics:Born from Aviation, Randolph SkyForce and SkyTec lenses are designed for performance with specially developed technology. Our Original Aviators have been trusted by pilots worldwide for over 45 years. The US Military demand the best precision optics - since 1978 Randolph Engineering have supplied their Fighter Pilot Sunglasses.Corsair Authentic Aviator Sunglasses:Randolph Corsair sunglasses were inspired by the F4U Corsair, flown in combat by U.S. Navy, Air Force, and Marine pilots. This high-performing and comfortable style offers full coverage and were built to meet the same Military Standards as our classic Aviator. The Corsair is distinguishable by it's subtle dip to the brow bar that gives the rectangular frame a strong aerodynamic look. Performance Lens Coatings:Designed with added polarization technology properties in both polarized glass and polarized lite lens options, Randolph Corsair lenses meet the visual requirements of US Military Pilots, who have even stricter vision requirements than commercial airline pilots. Built to the same standards as the Randolph Military Aviators, our Corsair’s are built to the highest military standards (Mil-S-25948, to be exact). Randolph’s are worn by U.S. military pilots, celebrities, explorers and taste makers alike.Our Gunmetal is made of a dark ruthenium jewelry quality finishLifetime warranty on all frames100% UVA/UVB protectionPolarized lens optionsHandcrafted in the USA in 200+ steps over 6 weeksComplete comfort skull temple tipsSelf-adjusting cushioned nose padsIncludes leather case and cleaning cloth pouch Extraordinary eyewear built to last a lifetime. Or two.