Welcome to the World of Kaenon Polarized and the patented SR-91 Lens! Kaenon Polarized decided to bring you nothing but the best in lens technology and fashion. They created an entirely new lens material which reinvents polarized technology and delivers a lens that flawlessly adjusts your vision to light, weather and terrain conditions! Who said you had to compromise fashion and performance? Why wait, get Kaenon Polarized frames today...Your eyes will Thank You for it!