Prada B18S Square Sunglasses pair a bold squared acetate frame with violet polyamide lenses for everyday UV protection and a distinct geometric look. Key attributes: Black | Acetate | 100% UVA/UVB protection | Polyamide lenses | Saddle nose bridge | Includes original case and cleaning cloth | Frame not compatible with graduated lenses | Squared silhouette | Geometric front with beveled outer rims | Triangle logo on temples | Wide, tapered arms | Dimensions & fit: 53-19-145 mm (lens-bridge-temple) | Lens height 42 mm | High bridge fit | Composition & care: Acetate (frame) | Polyamide (lenses) | Spot clean frame; wipe lenses with a microfiber cloth; store in the provided case.