The Oakley Shackle (OO9507D) features a full-rim, soft-square silhouette designed for daily wear with standout style. Its front is built from lightweight O-Matter™, giving it durability without sacrificing comfort. The frame includes adjustable wire-core temples so you can fine-tune the fit, and Unobtainium® nosepads and earsocks that grip better as you move or if things heat up. With available Prizm™ lens options that boost contrast and clarity, it’s a smart fit for both active days and relaxed weekends.