Cat GRADER is a high wrap sports frame. Extremely comfortable, it features integrated molded nose pads, molded rubber temples and pop-stop hinges. It features on-trend colors, as well as ultra-thin, ultra-light, high-performance TAC polarized lenses, providing superior glare protection. Made of lightweight polycarbonate material, you will forget you are wearing sunglasses. Cat Sunglasses - Let's Do the Work.