1958, the U.S. military specification for the manufacture of aviator sunglasses was created. AO immediately and alone in the field, began building these unique and high quality aviator sunglasses. Today, AO aviator sunglasses are the standard issue to U.S. military pilots and aircrew. NASA even selected AO sunglasses to be worn by U.S. astronauts and the sunglasses went to the Moon on the Apollo missions. Today, AO works to maintain quality and produce the quantity of these fine aviator sunglasses that both the U.S. military and civilian aviation communities demand.