Marc Jacobs MARC 639/S sunglasses combine a bold flat-top rectangular acetate frame with gradient grey lenses for reliable sun protection and a refined statement look. Key attributes: Black | Acetate | Gradient grey lenses | UV protection (filter category 3) | Non-polarised lenses | Prescription-ready frame | Includes branded protective case | Flat-top rectangular frame | Thin metal trim on temples | Designer logo on arms | Full-rim construction | Dimensions & fit: 57 mm lens width | 18 mm bridge width | 46 mm lens height | 145 mm temple length | Composition & care: Acetate (frame) | CR-39 / plastic (lenses) | Clean lenses with a microfiber cloth. Store in the supplied protective case when not in use.