Saint Laurent M131 Sunglasses pair a classic squared acetate frame with a subtle monogram hinge detail, designed for refined everyday wear. Key attributes: Black | Acetate | UVA/UVB protection | Includes original case | Cleaning cloth included | Certificate of authenticity and guarantee included | Squared frame | Full-rim construction | Monogram hinge detail | Dimensions & fit: Lens width: 52 mm | Bridge: 20 mm | Temple length: 140 mm | Composition & care: Acetate | Bio nylon | Wipe lenses with the included cleaning cloth and store sunglasses in the case when not in use.