Bolle Columbus Sunglass with Polarized Sandstone Gun Oleo AF Lens, Matte Brown Our polarized lenses align light rays from the sun, giving you a crystal-clear view at all times Oleo phobic treatment on the outside of the lens, Dirt, grease and water spots, this coating stops it before it sticks to your lenses No fogging on your eyewear, Not only repels the fog that clouds your vision but is simply revived by an application of moisture Lightweight and optically precise, our lenses are enhanced with an armor shell on both sides of the lens, giving you protection from scratches Integrated spring hinges are designed to exacting standards, just the right amount of tension on your temples for a secure and comfortable fit