Through advanced lens technology, Suncloud polarized lenses selectively filter horizontally reflected, visually interfering light waves know as 'glare'. The elimination of direct and ambient glare results in superior visual clarity, definition, color transmissions and optical comfort. We built our reputation on quality, performance product and we stand behind it. No map required. On the bike, in the car or on a hike, the lightweight Detour shield finds the way in all activities. Medium size with face loving megol nose pads and temple tip inserts, the lightweight TR90 frame features glare reducing polarized polycarbonate lenses that provide 100% protection from harmful UV rays Suncloud Milestone Polarized Sunglasses