Ray‑Ban Sam Optical Frame combines a slim yet distinctive acetate silhouette with everyday prescription readiness. The design suits those seeking a modern, irregular-shaped frame for daily wear. Key attributes: Black | Acetate | Durable acetate construction | Prescription-ready | Available in multiple sizes | Irregular shape | Curved brow line | Full rim | Shiny finish | Dimensions & fit: 52 x 19 x 140 mm | 54 x 19 x 145 mm | Lens height: 35 mm | Lens height: 37 mm | High bridge fit | Available in two sizes | Composition & care: Acetate | Clean lenses with a microfiber cloth; avoid abrasive chemicals. Adjustments and lens replacement should be carried out by a professional optician.