Oakley engineering takes performance to the next level and brings style along for the ride. The Oakley Flak XS sunglasses are scaled down version of the Oakley Flak 2.0 and are designed to fit kids or anyone with a smaller face. The Oakley Flak XS feature enhanced lens coverage, and every millimeter of the lens is optimized with high definition optics in a ruggedly durable yet lightweight design. The Flak XS is designed to push your limits with patented XYZ optics for razor sharp clarity and secure grip of unobtanium.