Ray-Ban RX5421 Optical Frame combines a clean rectangular silhouette with a polished acetate build for everyday prescription wear. Designed for comfort, it suits high-bridge fits and regular everyday use. Key attributes: Gray | Transparent | Acetate | Prescription-ready | Progressive-compatible | Base 4 lens geometry | Includes demo lenses (prescription-ready) | Prescription lenses available | Rectangle shape | Full-rim frame | Polished finish | High bridge geometry | Dimensions & fit: 53 x 19 x 145 mm | 55 x 19 x 145 mm | Lens height: 40 mm | Lens height: 41 mm | High bridge fit | Regular fit | Composition & care: Acetate | Clean lenses with a microfiber cloth and approved lens cleaner. Store in the supplied case when not in use. Avoid prolonged exposure to heat and harsh chemicals.