Saint Laurent SL M136 Sunglasses pair a narrow oval silhouette with an acetate frame and nylon lenses for a retro-inspired look. They provide 100% UVA/UVB protection and feature gold-toned 'Cassandre' logo hinges while remaining compatible with prescription lenses. Key attributes: Black | Acetate | 100% UVA/UVB protection | Frames compatible with prescription lenses | Oval nylon lenses | Gold-toned metal 'Cassandre' logo hinges | Dimensions & fit: Lens width: 52 mm | Nose bridge length: 22 mm | Temple length: 140 mm | Composition & care: Acetate | Nylon | Wipe lenses and frame with a soft cloth; store in protective case when not in use.