An aviator inspired design gives the Maui Jim Keanu Sunglasses a cool style, but you'll like it for more reasons than that. These sunglasses utilize ST Glass lenses that offer the best optics possible yet are 20% thinner and lighter than standard glass lenses. They are also durably scratch resistant for excellent longevity, and feature traces of three color enhancing rare earth elements. PolarizedPlus 2 technology further boosts color and contrast, on top of eliminating glare and blocking harmful UV, UVA, and UVB rays. The bi gradient mirrored tint eliminates glare both from overhead and below for total eye comfort. The Keanu's monel metal frame is ultra durable, but can be adjusted for an ideal fit it arrives already shaped to fit medium sized faces comfortably. The frame also has a matte finish to add even more style to the rugged, masculine design. Rubber temple and nose pads help the Keanu stay in place even if you work up a sweat, and a rubber sweat bar on the upper bridge keeps sweat off your face for even more comfort.