Retrosuperfuture NS9 Sintesi Sunglasses by Retrosuperfuture pair a bold, squared acetate frame with reliable UV protection for everyday wear and street style. Key attributes: Black | Nero | Acetate | UV protection | High-quality lenses | Adjustable temple arms with metal core | Squared frame | Thick acetate rims | Classic silhouette | Dimensions & fit: Lens width: 52 mm | Bridge: 21 mm | Temple length: 145 mm | Regular fit | Composition & care: Acetate | Clean under running water and dry with a soft cloth; avoid wiping lenses while dry. Store in the case when not in use and avoid leaving in direct sunlight in non-ventilated spaces. Adjustments can be made by an optician.