Anemone UV Protection, Gradient Rectangular, Spectacle Sunglasses (50)  (For Men & Women, Clear, Black)

These Photochromic lenses are eyeglass lenses that are clear indoors and darken automatically when exposed to sunlight.They offer continuous UV protection. You will no longer forget your sunglasses or not bother to put them on for a trip outside. For enhanced performance anti-glare treatment makes them ideal for sports and prevents misting when coming from outdoors to indoors.The lenses automatically sense the intensity of light and absorb the harmful ultraviolet rays.The brighter the light, the darker the color of the lens.