Genuine Oakley article, and great fit! I have been enjoying my "older" pair of xlj Flak jackets since 2007. I wanted to replace the old VR28 lenses with a new  polarized set, and happened to see and try on this new pair of glasses. The local Oakley store prices were much higher than what I found here through Motorhelmet, the Amazon sales partner from whom I bought both the replacement lenses and this new pair!  The new version is more streamlined, with the entirety of the ear stems being coated in a (still removable)rubberized material instead of the older and shorter length "socks". I also like the frame's color fade from black to ruby red! The black Prizm polarized lenses are indeed dark, and are the same length as the old xlj lenses.
*You CANNOT swap lenses from old to new frames, as the hooks and indents on the lenses are different.
So now I have a new pair of glasses, as well as my tried and true classic xlj Flak jackets with a new pair of Prizm "shallow water" polarized lenses, and saved just under $60 by getting them both here!