Retrosuperfuture Biscotto XIO Sunglasses pair a bold geometric silhouette with high-grade glossy acetate for a refined, minimalist look. Zeiss extra black lenses provide strong sun protection and precise optical performance. Key attributes: Black | Nero | Acetate | Zeiss extra black lenses | Excellent sun protection | High visual clarity | Durable acetate frame | Secure, everyday wear | Geometric frame | Glossy black finish | Sharp lines and modern proportions | Dimensions & fit: Versatile fit suitable for various face shapes | Balanced geometric silhouette | Composition & care: Acetate frame | Zeiss lenses | Clean lenses with a microfiber cloth; avoid abrasive cleaners and harsh chemicals. Store in a protective case when not in use.