Oakley Frogskins OO9013 9013C4 sunglasses blend a retro-inspired square silhouette with Oakley performance optics. The model pairs a lightweight O Matter frame with Oakley HDO® and Prizm lens technology for everyday sun protection and enhanced contrast. Key attributes: Black | O Matter | High Definition Optics (HDO) | Prizm lens technology | 100% UV protection up to 400 nm | Lightweight O Matter frame | Available with prescription lenses | Replacement lenses available | Square frame | Classic Frogskins silhouette | 4-base lens geometry | Dimensions & fit: Lens width: 55 mm | Bridge: 17 mm | Temple length: 137 mm | Regular - High bridge fit | One size (XL) | Composition & care: O Matter (frame) | Plutonite (lens) | Use the included Microclear™ bag to clean lenses; hand wash and air-dry the Microclear bag regularly.