Ray-Ban Erika RB4171 is a classic, everyday sunglasses style with a rounded silhouette and gradient lenses. It pairs a rubberized nylon frame with protective polycarbonate lenses for comfortable all-day wear. Key attributes: Purple | Violet | Nylon | UV protection | Gradient lenses | Polycarbonate lenses | Includes original case | Includes microfibre cleaning cloth | Oval lens shape | Rubberized finish | Shiny finish | Dimensions & fit: Lens width (calibre): 54 mm | Bridge: 18 mm | Temple length: 145 mm | Lens height: 46 mm | Composition & care: Nylon frame | Polycarbonate lenses | Wipe lenses with a microfibre cloth and store in the included case.