Giorgio Armani AR8231U Square Sunglasses pair a square acetate frame with medium-size grey lenses for everyday sun protection and a refined, minimalist look. Key attributes: Black | Acetate | Square frame | Full-rim frame | Dimensions & fit: Lens width: 54 mm | Lens height: 44 mm | Bridge width: 18 mm | Temple length: 145 mm | Composition & care: Acetate | Clean lenses with a microfiber cloth; store in the case when not in use.