Saint Laurent SL M152 Sunglasses feature a narrow rectangular acetate frame with the house's signature monogram hinge and grey lenses designed for strong sun protection. Key attributes: Brown | Havana | Grey | Acetate | UV protection (Category 3) | YSL monogram hinge | Includes case and cleaning cloth | Compatible with prescription lenses | Rectangular silhouette | Narrow, elongated frame | Monogram detail at temples | Dimensions & fit: Lens width: 55 mm | Lens height: 29 mm | Bridge width: 19 mm | Temple length: 135 mm | Narrow fit | Composition & care: Acetate (frame) | Nylon (lens) | Metal (hinges)