Ralph By Ralph Lauren RA5301U 50018G. Frame color: Shiny Black; Lens color: Gradient Grey; Frame material: Acetate. The Sunglasses Ralph Lauren Ra5301u offer a vintage touch with their Frame Rotonda in acetate. The timeless design, inspired by the retro style, is enhanced by the black color and gray lenses, perfect for those who want to add personality and character to their look. Recommended for square and rectangular faces, thanks to their ability to soften the corners. Ideal for women.