Perfect your look with these classic military aviator sunglasses. American Optics US made sunglasses will last you a lifetime as long as you take care of them. The American Optics Generals sunglasses have a 58mm lens size. These are the pilot sunglasses that have been in use by the US military for over 40 years. AO sunglasses are made to strict military specifications and have been general issue to thousands of US soldiers, Marines, Airmen and sailors since 1958. Built to be rugged and sturdy with a high quality finish, American Optics 58mm Generals Sunglasses incorporate a steel alloy frame and lenses that have been enhanced to be durable and rugged. The lenses are distortion free and polished to give you excellent optics.