Kaleos Riordon C1 Sunglasses combine a glossy acetate frame with green photochromic lenses that adapt to changing light, offering reliable UV protection and a modern rectangular silhouette. Key attributes: Black | Nero | Acetate | Photochromic lenses | 100% UV protection | Anti-reflective treatment | Includes protective case and cleaning cloth | Comfortable temple tips | Rectangular frame | Glossy black acetate finish | Thick front and temples | Clean, sharp lines | Dimensions & fit: Lens width: 53 mm | Bridge width: 22 mm | Composition & care: Acetate frame | Photochromic lenses | Clean with the included microfiber cloth and store in the protective case; avoid solvents and prolonged exposure to high temperatures.