When extraordinary vision relies on pioneering design and high performance features, Ray-Ban RB4321 Chromance Gradient Mirror Polarized Sunglasses step up to the challenge. These trendy shades feature hexagonal angular frames made from lightweight, flexible nylon-fiber. The bold profile of this powerful shape with exclusive lenses takes game-changing, high performance to a whole new level. Chromance technology brightens color, enhances contrast and helps you see cleared than ever before. The lenses are polarized and feature a mirror coating, both which hip control glare for clearer vision.Adjustable rubberized nose pads and temple tips ensure that these Ray-Ban Chromance sunglasses have just the right fit.