Boss 1150/CS 003(IR) Optical Frame pairs a classic rectangular silhouette with a removable clip-on sunshield for quick indoor-to-outdoor wear. The design focuses on everyday comfort and straightforward sun protection. Key attributes: Black | Matte black | Acetate | Lightweight frame | UV protection when clip-on is attached | Durable construction | Removable clip-on sunshield | Includes demo lenses ready for prescription replacement | Rectangular shape | Full-rim frame | Matte finish | Integrated temples | Dimensions & fit: Lens width: 55 mm | Bridge: 18 mm | Temple length: 145 mm | Lens height: 37 mm | Composition & care: Acetate | Clean lenses with a microfiber cloth and lens cleaner. Store in a protective case when not in use. Avoid high heat and harsh chemicals.