These are the classic aviator sunglasses, and the only ones handcrafted to military specifications. Originally issued to U.S. Navy pilots and aircrew, NASA astronauts, and the legendary Blue Angels beginning in 1977. Scratch-resistant, UVA- and UVB-resistant gray lenses are noted for their true color reception. The unique bayonet temples are designed to fit under a helmet, making them just as comfortable with any hat. Hand-polished 24-karat gold-plated frames with virtually unbreakable solder joints.