ULTRA PHOTOCHROMIC DESIGN This magical photochromic lens are based on the intensity of sunlight and ultraviolet light darkening the light grey lens What s more these glasses protect the eyes without interfering with your perception of color Plus its fashion rectangular design always match your daily dressing demand UV400 POLARIZED PROTECTIVE LENS These sunglasses are superior to the previous type of sunglasses in three ways when moving indoors or outdoors the lenses adjust to the reduced light conditions automatically And secondly the polarized lenses reduce flare and glare Meanwhile 100 UV protection layers against harmful UVA UVB Rays USAGE OCCASIONS Photochromic looking sunglasses can do a good job of stopping the dazzling effects of sunlight when you are driving running fishing biking or other outdoor activities Keep your safety always by your side HIGH STRENGTH LIGHTWEIGHT MATERIALS NO MATTER DAY OR NIGHT IT WORKS WELL Our sunglasses are made of special photochromic polarized lenses When driving at night or into a dark environment the lenses are lightcolored transparent to enhancing the visibility while effectively reducing the glare During the daytime it can effectively filter the strong light enhance the visual sharpness reduce eyes fatigue and keep the eyes always in the most comfortable state of outdoor activities Features Lightweight Al Mg Alloy Metal frame Adjustable temple nose pad and flexible arm bring you a better and comfortable