With Revo Light Management System, these sunglasses feature Digital Polarized Plus technology for 100% polarization to protect against glare, while still allowing you to view devices, watches, phones, etc. Modern and current, smooth and contoured, fast and comfortable - these are the characteristics that define the Matte Black Frame, Graphite 61mm Lenses sunglasses. The Revo SurfacePro Protection System includes Revo exclusive mirror coatings, Revo Back-Surface Protection Coating, authentic Revo hydrophobic coating, and authentic Revo oleophobic coating. The Revo exclusive mirror coatings has 3-6 layers of high-tech, performance mirror coatings based on NASA lens technology used for satellite protection and Revo back-surface protection coating. The authentic Revo hydrophobic coating is a permanent coating on the back of the lens that repels water and sweat while the authentic Revo oleophobic coating is a permanent coating on the front of the lens that repels oil and fingerprints.