When extraordinary vision relies on pioneering design and high-performance features, Ray-Ban® RB4321CH Chromance Mirror Polarized Sunglasses step up to the challenge. Inspired by Ray-Ban Aviator sunglasses, these trendy shades feature hexagonal, angular frames made from lightweight, flexible nylon-fiber with an understated matte finish. The bold profile of this powerful shape with exclusive lenses takes game-changing, high-performance vision to a whole new level. Lightweight polycarbonate lenses feature Chromance technology, which brightens color, enhances contrast, and helps you see clearer than ever before. The lenses are polarized and feature a mirror coating, both of which help control glare for clearer vision. Adjustable rubberized nose pads and rubberized temple tips ensure that these Ray-Ban Chromance sunglasses have just the right fit. Manufacturer style #: RB4321CH.