Oakley Flak Jacket XLJ Sunglasses - Men'sSport professionals demand nothing less than the best, and Oakley has answered their challenge for decades. World-class athletes have driven Oakley to create innovation after innovation, including interchangeable lens designs with unbeatable optical clarity. The Oakley Flak Jacket™ XLJ Sunglasses takes that to the next level with the latest in performance technology. It features a Hydrophobic™ lens coating that prevents rain and sweat from building up on the lens. It also repels skin oils and other contaminates, so the lens is smudge resistant and easy to keep clean. You can change lenses in seconds to optimize vision in any sport environment. Multiple lens colors are available, and all lenses feature the unbeatable clarity of Oakley’s High Definition Optics® (HDO®). 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 Unobtanium® to increase grip with perspiration. Oakley’s Three-Point Fit optimizes comfort and holds the lenses in precise optical alignment for superior clarity. The frame is made of lightweight O Matter® for all-day comfort. The semi-rimless design means there’s no frame rim to block downward view. Each frame comes with a case for transport.