Ray-Ban Square Sunglasses combine a lightweight Liteforce frame with a double-bridge square silhouette for reliable sun protection and everyday wear. Key attributes: Black | Liteforce (PEEK) | UV 400 protection | Lightweight and durable | Polyamide lenses | Prescription-ready (RX-able) | Includes protective case | Square frame | Double bridge | Matte finish | Full-rim construction | Dimensions & fit: Lens width: 56 mm or 59 mm | Bridge: 20 mm | Temple length: 140 mm or 145 mm | Lens height: 40 mm or 42 mm | Frame width: 147 mm | Weight: 23 g | High bridge fit | Wide fit | Composition & care: Frame: Liteforce (PEEK) | Lenses: Polyamide | Wipe lenses with a microfiber cloth and lens cleaner. Store in the protective case when not in use. Avoid high heat and abrasive cleaners.