American Optics 52 MM Polarized Chrome - Grey Lens Sunglasses - 10701. AO Original Pilot Sunglasses with 52mm Bayonet Temples and True Color Gray Glass Lenses: Official US Air Force pilots sunglasses Made in USA by #1 US government supplier American optics CE is stamped on inside of temple Comfortable bayonet temples Polycarbonate color correct polarized lenses Protection from 100% UVB rays and 98% UVA rays Case closes with hook and loop closure and is made of synthetic material American optics: Black - 52 mm GI Air Force Pilots polarized sunglasses - with a case This product is GSA Compliant.