FEATURES of the Maui Jim Cliff House Polarized Sunglasses These glasses have Maui Jim's special lenses which filter, balance, and increase the amount and quality of the colors that the eye naturally perceives. As a result of the lenses on these glasses, you see deep, saturated colors that have a higher level of contrast and depth perception like you've never seen. The MauiEvolution feature of these sunglasses combines the best attributes of SuperThin Glass and Polycarbonate for a scratch and impact resistant lens with high performance colors. These glasses have a waterproof coating to shed water and snow. They also have an oleophobic cooating which repels grease and makes smudges and fingerprints easier to wipe away on both the front and back of the lenses. The Jim Cliff House glasses have MauiGradient, which is a darker application at the top that gradually gets lighter moving down the lens so the appropriate amount of light is allowed to filter through certain areas, while less filters through in places where protection is paramount.