The Milestone is the consummate example of multipurpose sunglass perfection. The wrap shape and Megol nose pads mark the way to long wearing comfort. Classic design with just enough attitude makes the Milestone an easy to wear favorite. Through advanced lens technology, Suncloud polarized lenses selectively filter horizontally reflected, visually interfering light waves known as glare". The elimination of direct and ambient glare results in superior visual clarity, definition, color transmissions and optical comfort. All Suncloud lenses are manufactured from optical grade polycarbonate material with high grade polarizing film incorporated into the lens. The results are glare free viewing through a lightweight lens with high impact resistance for added protection. The polarized brown provides elimination of glare and enhanced contrast while maintaining the accuracy of color transmissions. Elimination of glare and the truest transmission of natural colors. The polarized gray eliminates glare and provide the truest transmission of natural colors. The mirrored blue on gray polarized lens eliminates glare and provide the truest transmission of natural colors.