Saint Laurent SL M153 Sunglasses pair a slightly cat-eye acetate frame with the Maison’s monogram hinge for a refined, everyday sunwear silhouette. Designed for structured style and easy prescription conversion. Key attributes: Black | Acetate | Prescription lens compatible | Includes protective case and cleaning cloth | Slightly cat-eye rectangular shape | Full acetate frame | Monogram hinge detailing | Dimensions & fit: Lens width: 55 mm | Bridge width: 18 mm | Temple length: 145 mm | Lens height: 36.3 mm | Narrow fit | Size: 55-18-145 | Composition & care: Acetate | Bio nylon lens | Clean lenses with a microfiber cloth and mild lens cleaner; store in the supplied protective case when not in use.