Saint Laurent M146 Optical Frame combines an oversized square acetate silhouette with a thin monogram hinge for a refined yet lightweight everyday optical option. Designed to accept prescription lenses, it balances bold shape with comfortable wear. Key attributes: Havana | Transparent | Acetate | Lightweight construction | Durable acetate frame | Prescription-ready frame | Lightweight hinge for comfort | Oversized square frame | Thin monogram hinge detailing | Structured acetate silhouette | Dimensions & fit: Lens width: 54 mm | Bridge: 19 mm | Temple length: 145 mm | Size: 54 mm (wide frame) | Bridge: 19 mm | Temple length: 145 mm | Composition & care: Acetate | Clean lenses with a microfiber cloth; avoid abrasive cleaners and harsh chemicals.