Serengeti Lenwood 8930 Sunglasses combine a large rectangular acetate frame with Serengeti’s photochromic, polarized Spectral Control lenses for clear, comfortable vision in bright conditions. Key attributes: Black | Acetate | Photochromic (light-adapting) lenses | Polarized lenses | Spectral Control® technology | Prescription compatible (RX available) | Supplied with protective case and cleaning cloth | Rectangular large frame | Matte finish | Iconic 3-in-1 lens system | Dimensions & fit: Lens width: 57 mm | Lens height: 45 mm | Bridge width: 18 mm | Temple length: 155 mm | Extra large fit | Composition & care: Acetate frame | Mineral lens | Wipe lenses with a microfiber cloth and lens cleaner. Store in provided case. Avoid exposure to high heat and abrasive cleaners.