Saint Laurent Square Sunglasses combine a bold acetate frame with full-tint lenses for a high-coverage, stylish daytime look. Key attributes: Black | Acetate | Full-tint lenses | Compatible with prescription lenses | Supplied with protective case and cleaning cloth | Square frame | Full-rim construction | Classic acetate temples | Dimensions & fit: Lens width: 57 mm | Bridge width: 20 mm | Arm length: 145 mm | Composition & care: Acetate | Clean with a microfiber cloth; store in the supplied case.