Ray-Ban Cats 5000 Classic Glass Sunglasses are a reinterpretation of the iconic Aviator. These Ray-Ban sunglasses offer a similar look and style to the original Ray-Ban classic, but instead of the classic metal frames, they feature lightweight propionate injected plastic frames for a bigger, bolder look. Created in 1937, the classic lens was originally developed for military use. These lenses offer a high degree of clarity, comfort and protection, blocking out a majority of blue light and prevents 85% visible light from passing through the lens. These updated aviator sunglasses offer optimal comfort and 100% UV protection to safeguard your eyes. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Non Polarized.