Authentic Ray-Ban Since 1937 - The RB1971-914778, women's metal sunglasses, will take your personal style to a new level. These authentic Ray-Ban sunglasses have an square shape and are a full rim frame. The front material is made from metal. The color of the frame is arista and the lens are blue gradient grey. The eyesize is a 54 mm and fit and feel great. Discover what Oakley is all about with these Square RB1971 arista/blue gradient grey sunglasses in a lens width 54 mm, bridge size 19 mm and with a temple length of 145 mm.