Photochromic polarized sunglasses P545 have photochromic and polarized lenses that, with increasing and decreasing exposure to UV rays, tend to smoke cat.1 to smoke cat.3 automatically, always ensuring an excellent visual performance. A polarized photochromic lenses protect the eyes every day, in the presence of sunlight, overcast or intermediate weather conditions. What characterizes these photochromic lenses is precisely the polarizing treatment, that has always been among the most popular in the optical world. These lenses change intensity going from a filter 1, very clear, filter 3, the classic filter of smoke lenses.