Oakley Frogskins 9013 Sunglasses combine the classic 1980s Frogskins design with Oakley's Prizm™ lens technology to improve depth perception and contrast for sports and everyday wear. Key attributes: Multicolor | Trasparente | Acetate | Prizm™ lens technology for enhanced contrast and depth perception | Suitable for sports and active use | Lightweight acetate frame | Optimized vision in varied lighting conditions | Classic Frogskins retro 1980s shape | Square frame silhouette | Prizm Violet lens option | Dimensions & fit: Lens width: 55 mm | Composition & care: Acetate frame | Prizm™ lenses (material not specified)