FEATURES of the Maui Jim Ho'okipa Polarized Sunglasses The Ho'okipa Polarized Sunglasses feature Polarized Plus2 technology which sets the standard for glare protection and color enhancement. This technology wipes out 99.9% of glare and block 100% of harmful UV while boosting color to unbelievable levels. 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 Ho'okipa glasses are made with grilamid, a rugged, resilient material used for making frames that is specifically formulated for flex, impact strength and dimensional stability. 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 Ho'okipa Polarized glasses feature 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.