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Oakley Fast Jacket XL Sunglasses is a performance product with a unique interchangeable lens design that lets you match your optics to your environment. Switching out the lenses is fast and easy, thanks to Switchlock Technology. It's an innovation that locks the lenses in place with a quick release system. With Switchlock, the lenses are securely suspended without any stresses that could alter the optics, so you'll have premium clarity with true, accurate vision.
Each frame comes with a Nano-Clear Hydrophobic mini-pen that lets you apply a special coating, an invisible shield that makes water bead up and roll off the lenses instead of leaving a sheen that can corrupt your vision. Impact protection meets ANSI Z87.1 standards while clarity and optical precision exceed them. We achieve it all with the unrivaled technologies of High Definition Optics, including patented XYZ Optics that maintains clarity at every angle of view. We use the most optically pure lens material in the industry, Plutonite. It has the added advantage of filtering out every baking ray of ultraviolet light including UVA, UVB, UVC and harmful blue light up to 400nm. Product ID# 2027201.