CW4656 sunglasses with acetate frame. These Nike glasses have a square silhouette. The frame of these glasses is made of acetate, a plastic material, which provides durability, flexibility and a smooth finish to the frame. The temples are also made of acetate, matching the frame material, making them light and comfortable to wear. Features Nike logo engraving on the temples, which helps to clearly identify the model as part of the Nike eyewear collection. The lenses are of high quality and provide excellent UV protection and crisp, clear vision. Measures: Lens width: 59 mm. Bridge: 16 mm. Temples: 135 mm. Composition: 100% Acetate. Care: Use a soft, clean microfiber cloth to clean your sunglasses. This type of cloth will not scratch the lenses. Avoid using abrasive cleaning products, detergents, alcohol or acetone, as they can damage lenses and anti-reflective treatments.