Ray-Ban Alain Optical Frame is a full-rim nylon frame designed for everyday prescription wear, featuring a geometric rectangular silhouette that balances style and comfort. Key attributes: Gray | Transparent | Nylon | Lightweight | Durable construction | Prescription-ready | Available in multiple sizes | Rectangular shape | Full-rim frame | Shiny finish | Geometric browline | Dimensions & fit: Lens width: 52 mm, 54 mm | Bridge: 18 mm | Temple length: 145 mm | Lens height: 39 mm, 41 mm | Composition & care: Nylon