GUNNAR Blue Light Sunglasses - Enigma, Onyx, Sun - Sun - Onyx Frame/Sun Lens

3-barrel hinge design and high tensile steel construction create incredible durability Specifically tuned to help improve your circadian rhythm by harnessing the benefits of long-wave blue light Asian Fit Compatible Silicone hard coated lens to prevent scratching Curved nose rests provide even weight distribution and eliminate pressure points Wide format lenses create an unobstructed panoramic, high-resolution field of view Rigid lens mounting area prevents optics from degrading through lens flexing Blocks 100% harmful UVA and UVB light Engineering grade frame polymers provide dimensional stability and long-term durability