Ray-Ban Kai Sunglasses update the oval silhouette with slim metal frames and vivid lens colors. Their narrow, retro-inspired shape and prescription-ready design make them suitable for driving and everyday wear. Key attributes: Gunmetal | Dark violet | Metal | Polarized lens option | 100% UVA/UVB protection | Suitable for driving | Adjustable nosepads | Prescription ready | Oval narrow shape | Thin metal frames | Contrast temple tips | Full-rim | Dimensions & fit: Horizontal lens width (A): 59 mm | Bridge: 15 mm | Vertical lens height (B): 36 mm | Effective lens diameter (ED): 57 mm | Temple length: 145 mm | Narrow fit | Adjustable nosepads | Composition & care: Metal frame and temples | Nylon lenses | Wipe lenses with a soft, lint-free cloth. Avoid abrasive cleaners and high heat. Store in the supplied protective case when not in use.