Saint Laurent SL 711 OPT Optical Frame pairs a polished rectangular silhouette with black crystal acetate for everyday prescription wear. The medium-size, lightweight construction is designed for comfortable daily use. Key attributes: Black | Crystal | Transparent | Acetate | Lightweight | Durable | Prescription compatible | Includes clear demo lenses | Rectangle shape | Polished finish | Dimensions & fit: Lens width: 52 mm | Bridge width: 19 mm | Temple length: 145 mm | One size | Medium / Regular fit | Composition & care: Acetate | Clean lenses with a microfiber cloth and lens cleaner; store in a protective case.