The Original Pilot has been a favorite of U.S. military pilots since 1958. Expect uncompromising quality - engineered to rigid military specifications. AO has been manufacturing sunglasses since 1833 and, at one time, was a major manufacturer for military and optical products. The company divisions were sold off to provide maximum return for stock holders, and the AO Eyewear division is now owned by Eropa, an eyewear manufacturer in the Chicago area. In 2020 the line was reimagined with a return to the original logos and styles that made AO Sunglasses so popular. Here you will find AO Original Pilot, AO General and AO Saratoga sunglasses, one of which is sure to please you. AO Aviator Sunglasses are among the most sought after pilot sunglasses. These legendary sunglasses have been popular with pilots since WWII, and many vintage American Opical sunglasses are still out there. Find the perfect pair of American Optical sunglasses in 52mm, 55mm and 57mm sizes today.