Smith Cheetah Sunglass - Tortoise Polarized Brown GradientDial it back to 1988, and you would probably spot someone wearing the Cheetah while bumping cassette tapes and doing aerobics on the beach. Decades later, these Smith sunglasses remain a cult favorite for their balance of outdoor functionality and style. The rounded cat eye brow is the same as on the original, but they've upgraded to Carbonic lenses for a crystal clear view. Features: Carbonic lenses offer impact resistance and clear optics 100% UV