OAKLEY Flak 2.0 XL Sunglasses - Polished Black - Prizm Black Polarized LensOAKLEY Flak 2. 0 XL Sunglasses Frame: Polished Black Lens: Prizm Black Polarized The Oakley Flak 2. 0 XL edition offers a standard size frame with enhanced lens coverage, and every millimeter of the peripheral view is optimized with High Definition Optics in a durable yet lightweight design that takes performance to the next level and brings style along for the ride. XL lens variant extended coverage in the lower periphery Plutonite lenses provide