Saint Laurent M139 Optical Frame is a squared acetate optical frame that balances structured style with everyday wearability. It stands out for its clean silhouette and subtle monogram hinge detail. Key attributes: Beige | Transparent | Acetate | Prescription-ready | Compatible with prescription lenses | Graduable lenses | Includes protective case and cleaning cloth | Squared frame | Thin full-acetate construction | Small monogram hinge detail | Dimensions & fit: Lens width: 54 mm | Bridge width: 18 mm | Temple length: 145 mm | Lens height: 45.1 mm | International fit | Large frame (size 54) | Composition & care: Acetate | Clean lenses with a microfiber cloth and lens cleaner; store in the included protective case when not in use.