Photochromic sunglasses Color: Matte sand beige frame Lens color: Clear photochromic Resin Photochromic lenses that change color with UV intensity Changes from clear to gray. For reference, the 4th image shows partial photochromic change with a tester. Clear photochromic lenses are excellent lenses that can be used in one pair from bad weather and night to daytime. I don't think you'll find this spec at this price often. Perfect for sports like road biking, as well as outdoor leisure, golf, and driving. Glasses, Eyeglasses, Sunglasses, Progressive, Intermediate, Bifocal, Reading Glasses, Fashion Glasses, Sea Fishing, Rock Fishing, Stream Fishing, Golf, Driving, Driving, UV Protection, Cycling, Road Bike, Running, Jogging, Walking, Photochromic Lenses, Polarized Lenses, Photochromic Sunglasses, Polarized Sunglasses, Wellington, Boston, Road Bike, Cross Bike, Mountain Bike MTB, Cyclocross, Gravel Road, Cycling Wear, Cycling Jersey, Cycling Accessories, Sportswear, 100% One Hundred, Rudy Project, Clear Photochromic Sunglasses, Oakley, Military, Survival Game, Sabage Type: Sunglasses Uses/Features: Mountain bike, race bike, road bike, cycling jersey, other Frame color: Beige Stains, tears, odors, etc.: None