Oakley Shackle Sunglasses deliver a lightweight, durable frame and secure fit for everyday wear. The model pairs a soft square silhouette with Oakley lens technology for clear, reliable optics. Key attributes: Gray | O Matter | Lightweight construction | Durable frame | High-definition optics (HDO) | Unobtainium® nosepads and earsocks for no‑slip grip | Wire-core adjustable temples | Compatible with prescription lenses | Full-rim soft square shape | Square silhouette | Dimensions & fit: Eye: 52 mm | Bridge: 18 mm | Temple: 137 mm | Height: 46 mm | Size: 52-18-137 (XL) | Temple length: 137 mm | Composition & care: Frame: O Matter | Lenses: Plutonite® | Clean lenses with a microfiber cloth; hand wash frame and lenses with mild soap when needed; store in the supplied case.