The Fast Jacket XLJ Sunglasses come with the unbeatable technologies you expect from Oakley. This model features open-edge lens architecture to give you an advantage when looking through the downward view. The frame is comfortably lightweight O Matter®, durable enough to withstand the punishment of the pros. Each frame comes with two sizes of interchangeable nosepads to help you get a precise fit. Like the earstem sleeves, they are made of Oakley Unobtainium® that increases its grip when you sweat. A Three-Point Fit keeps the optics precisely aligned and eliminates pressure points that come with ordinary frames. Each frame also comes with a Nano-Clear Hydrophobic mini-pen that lets you apply a special coating that makes water bead up and roll off the lenses instead of leaving a sheen that can corrupt your vision. Impact protection meets all ANSI Z87.1 standards. Includes patented XYZ Optics® that maintains clarity at every angle of view, paired with the most optically pure lens material in the industry, Plutonite®. It filters out every ray of ultraviolet light including UVA, UVB, UVC and harmful blue light up to 400nm.