Originally built for the U.S. Military, our flagship Aviator surpasses rigid mil-spec standards. Standard issue since 1982, these are battle tested and relevant to the most rigorous and demanding use. Worn by pilots, taste-makers, and those who demand the best. made in USA using the finest components found worldwide. signature bayonet temples designed for military pilots lifetime-warranted solder joints Military Issued: HGU4/P, MIL-S-25948 mineral crown glass lenses 98-100% UV Protection adjustable cushioned silicon nose pads for customized fit available as a prescription frame with optional sunglass clip-ons Tour of Duty: Vietnam, Desert Storm, Korea, and Kosovo A case, microfiber cleaning cloth, and small maintenance kit is included with your purchase.