Montblanc MB0320S Sunglasses pair a classic round silhouette with a Havana acetate frame and green lenses for refined everyday sun protection and style. Key attributes: Brown | Havana | Havana Green | Acetate | UV protection (UV400) | Category 3 lens tint | Lightweight frame | Graduable lenses (can accept prescription lenses) | Round frame | Havana pattern finish | Green lenses | Dimensions & fit: Eye size: 49 mm | Bridge: 21 mm | Temple length: 150 mm | Composition & care: Acetate (frame) | Nylon (lenses) | Wipe lenses with a microfiber cloth. Store in a protective case when not in use.