Saint Laurent SL 157 Optical Frame is a square acetate frame that pairs a classic silhouette with everyday prescription wearability. The clean lines and shiny finish make it suitable for both professional and casual looks. Key attributes: Black | Transparent | Acetate | Full rim frame | Prescription-ready | Square shape | Shiny finish | Dimensions & fit: Lens width: 52 mm | Bridge: 18 mm | Temple length: 140 mm | Composition & care: Acetate | Wipe clean with a soft cloth.