Description of Oakley Flak Jacket Sunglasses Jet Black / G30 Own a piece of history by getting a limited edition from the first production run. With a unique serial number to mark its position among 2000 select frames, each Collectors Edition will be one of a kind. Sport professionals demand nothing less than the best, and we’ve 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 JACKET™ takes that to the next level with the latest in performance technology. Features: Oakley HYDROPHOBIC™, a permanent 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. It even eliminates static electricity, so dirt and dust particles won’t cling. 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 UNOBTAINIUM® to increase grip with perspiration. Oakley’s Three-Point Fit optimizes comfort and holds the lenses in precise optical alignment for superior clarity. Made of lightweight O MATTER® for all-day comfort. Pure PLUTONITE® lens material filters out 100% of all UV, and FLAK JACKET™ 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 all ANSI Z87.1 standards, and XYZ OPTICS® extends razor-sharp vision all the way to the lens periphery.