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Photochromic cycling glasses
All frames are made entirely of sturdy TR90 material, so you wont feel uncomfortable even after long hours of wear.
Smart lenses automatically brighten or darken according to the intensity of UV rays, changing from light to dark in bright light, effectively maintaining the right feeling and protecting your eyes.
Multiple color available,from solid black to rainbow color such as gradient blue,pink,orange,purple,green and so on.One-piece lens design,offers a wider field of view and makes it more wind proof.