Golf professionals demand nothing less than the best, and Oakley have answered their challenge for decades. World-class athletes have driven us to create innovation after innovation, including interchangeable lens designs with unbeatable optical clarity. Flak 2.0 XL takes that to the next level with the latest in performance technology. The Flak 2.0 XL offers a standard size frame with enhanced lens coverage, and every millimetre of the lens is optimized with High Definition Optics in a ruggedly durable yet lightweight design. Choose the nose pads that give you the best fit - two sizes are included with every frame. Like the stem sleeves, they're made of Unobtainium to increase grip with perspiration. Oakley's Three-Point Fit optimizes comfort and holds the lenses in precise optical alignment for superior clarity. Flak 2.0 XL is made of lightweight O Matter for all-day comfort. Pure Plutonite lens material filters out 100% of all UV, and Flak 2.0 meets ANSI Z87.1 standards for impact protection. The semi-rimless design means there's no frame rim to block downward view. Optical clarity exceeds ANSI Z87.1 standards, and XYZ Optics extends razor-sharp vision all the way to the lens periphery. All lenses are made of pure Plutonite to filter out all UV, and this premium eyewear meets ANSI Z87.1 standards for optical clarity and impact resistance. Oakley engineered plenty of optional lenses for Flak 2.0 XL, so you'll be ready for any environment. Featuring the new Prizm Road Lens which is a revolution in lens optics built on decades of color science research. Prizm lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility.