The bold, no-nonsense lines of Spy"s Hielo Sunglasses make them a must have for fans of smoky clubs and undiluted spirits. Spy uses ARC lens technology in the Hielo, mimicking the shape of the eye itself to prevent distortion, so you have a clear view of what"s going down. Tough, UV-blocking polycarbonate lens material resists scratches and protects your eyes from impacts, while the smooth, polished Propionate frame and sturdy 8mm hinge feel solid all day long. Product FeaturesFrame: propionateHinge: metalLens: Interchangeable Lens: noPolarized: noFace Size: medium to largeFrame Measurements: Case Type: softNose Pads: noTemple Pads: Recommended Use: casualManufacturer Warranty: 1 Year