An increase in performance shouldn't mean a sacrifice in style, and with Oakley's Flak 2.0 XL sunglasses, they kept style in tow. With large, High Definition Optics® lenses, these frames make sure that every millimeter is optimized. The lightweight O Matter™ material ensure a comfortable, durable pair of sunglasses and the security of Unobtainium™ earsocks and nosepads means you never have to worry about slippage. The Flak 2.0 XL takes innovation even further with larger lenses with a standard frame size, giving you a fuller, wider view. Features of Oakley Flak 2.0 XL Sunglasses Lightweight O Matter™ Frame Material Unobtainium™ Earsocks for Increased Comfort and Performance Integrated Spring Hinge for Comfort Available with PRIZM™ Lenses Designed to Enhance Color, Contrast and Detail 8.75 Base Lens Technology with HDO™ Polarized and Iridium™ Lens Options Available Protective Soft Case Included Oakley SI Flak 2.0 XL American Heritage Service Flag w/PRIZM Black Polarized Lenses OO9188-G959