riginal Pilot square aviators were first developed in 1958 to meet the unique needs of American military pilots. Then called the FG-58 (flight goggles 1958), they were carefully designed to meet all of the needs of military aviators. The distinctive shape maximized the field of vision while minimizing glare; bayonet temples were designed to eliminate interference with helmets. They soon became much more than military pilot sunglasses. In 1969, they landed on the moon as part of the survival kits of all Apollo astronauts. Still made in the USA from premium global components, still engineered to rigid military specifications, these aviator sunglasses are built to last. Temple Style: Bayonet Size: 55-20-140mm Lens Color: True-Color™ Gray Frame Color: Gold Lens Type: SkyMaster™ Glass