FLAK JACKET is the latest in sports performance technology. FLAK JACKET 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 will not cling. FLAK JACKET lets you change lenses in seconds to optimize vision in any sport environment. Two sizes of nose pads are included with every frame. Like the stem sleeves, they are made of UNOBTAINIUM to increase grip with perspiration. FLAK JACKET is made of lightweight O MATTER for all-day comfort. Pure PLUTONITE lens material filters out 100 percent of all UV, and FLAK JACKET meets ANSI Z87.1 standards for impact protection. FLAK JACKET comes with a case for transport.