Serengeti Delio Sunglasses pair a classic square acetate frame with ultra-light mineral lenses engineered for clear vision in changing light. The Delio is optimized for everyday wear and driving with photochromic, polarized lens technology. Key attributes: Black | Zwart | Acetate | Photochromic lenses | Polarized lenses | Spectral Control technology | Anti-reflective coating | Mineral glass lenses | Durable acetate frame | Iconic square silhouette | Classic acetate finish | Full-rim style | Dimensions & fit: Lens width: 51 mm | Bridge: 21 mm | Temple length: 145 mm | Medium fit | Composition & care: Acetate (frame) | Mineral glass (lens) | Clean lenses with a microfiber cloth; avoid abrasive cleaners and chemical solvents. Store in a protective case when not in use.