Oakley Shackle Sunglasses deliver a square, full‑rim silhouette paired with Oakley’s Prizm lens technology for improved contrast and clarity. The lightweight O Matter frame and Unobtainium earsocks provide secure, all‑day comfort. Key attributes: Gray | O Matter | Prizm lens technology (enhanced contrast) | Lightweight, durable frame | Adjustable wire‑core temples | Unobtainium earsocks for improved grip | Square full‑rim shape | Classic Oakley temple detailing | Dimensions & fit: Eye (caliber): 52 mm | Bridge: 18 mm | Temple: 137 mm | Lens height: 46 mm | Composition & care: Frame: O Matter | Lenses: Polycarbonate | Earsocks: Unobtainium | Clean lenses with a microfiber cloth and mild soap; avoid abrasive cleaners and high heat.