The most innovative and advanced lens on the market, the N3??? blocks up to 4X more infrared light than regular polarized lenses. The Hardtop Ultra XP??? Sunglasses provide awesome style for any outfit any time and they deliver crisp definition and peak visual acuity. . ??. . . . FEATURES. . . . . . N3??? Lens Technology. . Co-injected Rhyno-Tuff?? Air Frames. . Hybrid venting. . Cam-Action Hinges. . Mastoid Temple Grip???. . Flex Metal??? Adjustable Nose Pad System. . . . . . ??. . . . All Native Eyewear sunglasses are backed by a lifetime warranty. . This product contains a chemical known to the state of California to cause birth defects or other reproductive harm 764824014970 28408800007 182 312 529