Photochromic Polarized Sunglasses for Men - UV Protection Driving & Outdoor Sports Glasses - Night Vision Safety Shades for Cycling, Running, and Night Driving

Product Description

Discoloration Test Methods:Because some customers do not know how to test lens discoloration, we explain more to know how to test.First:Please put the sunglasses under the sunshine keeping 10-15 seconds, then it will change color darker. (Remember it is sunshine but not cloudy or rainy)Second: You can use UV light to test , the lens will change darker .Note: Please know one thing, Do not test discoloration in cloudy weather or indoor. Since The discoloration of the lens is caused by ultraviolet radiation.Feature：Lightweight Al-Mg Alloy Metal frame.Adjustable temple, nose pad and flexible arm bring you a better and comfortable wearing. UV 400 Protection: The sunglasses block all three ranges of ultraviolet radiation: UVA, UVB and UVC and protect the human eye 100% from harmful effects of the sun rays. Photochromic Polarized lenses: The lenses reduce irritating reflections and glare caused by light reflected from surfaces such as water, road, sand or snow. They absorb 100% of UV light and eliminate 99% glare light.PHOTOCHROMIC POLARIZED LENS, The lenses are dark in bright sunlight, but clear in low ambient light conditions.