Flak 2.0 offers a standard size frame with enhanced lens coverage, and every millimeter of the lens is optimized with High Definition Optics® in a ruggedly durable yet lightweight design. Designed to push your limits with patented XYZ Optics® for razor sharp clarity and secure grip of Unobtanium®. PRIZMT is a revolutionary lens technology that fine-tunes vision for specific sports and environments. The XL edition offers enhanced lens coverage and specialized lens curvature for protection against sun, wind and impact.Unobtanium® earsocks and nosepads keep glasses in place, increasing grip despite perspiration. Patented High Definition Optics® (HDO®) provides superior optical clarity and razor-sharp vision at every angle. O-MatterT stress-resistant frame material is both lightweight and durable for all-day comfort and protection. PrizmT is a revolution in lens optics built on decades of color science research. PrizmT lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility. High Definition Optics® (HDO®) is a collection of patented technologies that allow Oakley eyewear to meet or exceed the testing standards of the American National Standards Institute for optical clarity, visual fidelity, and impact resistance. Cycling Deals offers great deals on cycling products and exceptional customer service. If you are not satisfied with your item. Please include all original packaging and do not write on original boxes. APO, AK, HI, and PR. Requests for a costly option will not be honored. Does not provide daily tracking. The item "Oakley Men's Flak 2.0 XL PRIZM ROAD OO9188-04 Sunglasses Matte Grey Smoke NEW" is in sale since Thursday, January 21, 2016. This item is in the category "Sporting Goods\Cycling\Sunglasses & Goggles". The seller is "cyclingdeals2u" and is located in USA. This item can be shipped to United States, to Canada, to United Kingdom, to Germany, to Japan, to Australia.