Ray-Ban RB4315 Sunglasses combine an oval nylon frame with mirror-treated lenses to deliver reliable sun protection and a vintage-inspired everyday look. Key attributes: Black | Brown mirror gold | Nylon | 100% UV protection | Category 3 lenses | Mirror lens treatment | Glare reduction | Oval frame | Polished finish | Dimensions & fit: Lens width: 51 mm | Bridge: 21 mm | Temple length: 145 mm | Lens height: 40 mm | High bridge fit | Petite face coverage | Composition & care: Frame: Nylon | Lenses: Crystal | Clean lenses with a microfiber cloth; avoid abrasive cleaners and household solvents; store in a protective case when not in use.