Ray-Ban RB8319CH Chromance sunglasses are a must-have for those who want to make a statement. The metal square frame, with its matte black finish, is designed to draw attention wherever you go. Paired with silver chromance lenses, these shades offer both style and functionality. These polarized lenses provide optimal vision and protection from harmful UV rays so you can stay stylish while staying safe in the sun. Available with lens contrast enhancement technology.