Gast Fable Sunglasses pair handmade acetate construction with semi-flat nylon lenses for clear vision and everyday sun protection. The model is built for durability and classic, square styling. Key attributes: Black | Acetate | 100% UVA/UVB protection | Anti-reflective inner coating | Five-barrel metal hinges | Includes hard case and microfiber cloth | Suitable for prescription lenses | Square silhouette | Full-rim frame | Semi-flat nylon lenses | Dimensions & fit: Lens width: 50 mm | Bridge: 23 mm | Temple length: 145 mm | Composition & care: Acetate | Nylon | Metal | Wipe lenses with the included microfiber cloth and store in the supplied hard case.