Saint Laurent SL 837 Rectangular Sunglasses pair a narrow, faceted acetate frame with Category 3 lenses for dependable sun protection and a refined, architectural look. Key attributes: Black | Acetate | UV protection (lens filter category 3) | Solid/grey lenses | Full-rim construction | Includes case and cleaning cloth | Prescription-ready lenses | Rectangular shape | Faceted front with open corner angle detail | Engraved logo on temples | Dimensions & fit: Lens width: 54 mm | Bridge width: 19 mm | Temple length: 145 mm | Lens height: 31 mm | Composition & care: Frame: Acetate | Lenses: Bio nylon | Wipe lenses with a soft microfiber cloth; store in provided case when not in use; avoid solvents and extreme heat.