Barton Perreira Duke Sunglasses pair an oversized square silhouette with Japanese-made acetate construction and polarized CR-39 lenses for clear, low-glare wear. Key attributes: Black | Smolder | Acetate | Polarized CR-39 lenses | Anti-reflective coating | Reduced glare | Includes case and cleaning cloth | Durable construction | Comfortable temples | Oversized square silhouette | Refined proportions with structured temples | Polished acetate finish | Dimensions & fit: Eye size - 56 mm | Bridge - 19 mm | Temple length - 148 mm | Oversized fit | Composition & care: Acetate frame (zyl) | CR-39 lenses with anti-reflective coating | Clean lenses with the included cloth and store in the provided case. Avoid abrasive cleaners and prolonged exposure when not in use.