"TEK SPEX 1012" Progressive Polarized NO LINE Bifocal SunglassesOur top of the line Tek Spex 1012 Progressive Polarized NO LINE Bifocal Sunglasses provide you with full eye protection from harmful rays of the sun. The polarized lens blocks the sun's glare reflected from rain water, snow, or shiny surfaces, plus they are progressive, which means that the top is clear and the magnification gradually gets stronger towards the bottom of the lens so that you will be able to see both near and far without any bothersome