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®
A premium option for select single-lens eyewear designs, it darkens the lens automatically to help you adapt to changing light and always perform at your best. Note that even when the lens color lightens, it still filters out 100% of all UV.