See near and far, just like with our regular progressives, but with 100% UV protection. Plus, like all of our lenses, they block blue light while reducing smudging and glare. The Root Cause Analysis is a high-density acetate frame, which means it's created from the good, expensive stuff. The time-tested aviator shape originates back to a date that the Internet is just not letting up that easily...but trust us when we say, "timeless." Features Caddis proprietary polarized sunglass lenses enhance contrast and reduce 99.9% of glare without any digital screen distortion. A premium hard coating protects lenses, increasing durability and minimizing scratches. Lenses include a high-performance water, dirt, and grease-repellent coating for easy maintenance and superior optics. Premium, bio-based acetate frame with 3-barrel industrial hinges.