Hi all, I purchased these in 2014 from a former Oakley employee directly involved with the design and manufacturing of the X Metal lineup. These frames feature unique thin-style prototype arms, maybe the closest shape would be the Romeo 2 ear stems. On the underside of the ear stems you can see the imperfections in the metal as they were testing out arm shapes. The Tio2 pair has a gnarly gauze-like texture to it. I won't dare even touch these for a repair job. They are best left original and in a display case IMO. The X Metal pair are marked "3" on the inside of the nose bridge. Enjoy the pics!



















