Features Enhanced lens coverage Unobtanium earsocks and nosepad for increased grip O-Matter stress resistant frame Oakley engineering takes performance to the next level and brings style along for the ride. 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. Unobtanium earsocks and nosepads keep glasses in place, increasing grip despite perspiration. The XL edition offers enhanced lens coverage and specialized lens curvature for protection against sun, wind and impact. Prizm 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.
Lens width: 60 millimeters
The SI Half Jacket 2.0 features easily replaceable lenses to help you adjust for changing light
Extra large frame accommodates bigger head size
Unobtanium earsocks grip the side of your head, even through sweat
O matter frame is light weight and long lasting
Frame color: Matte Black