I believe it's a law here that all made in China stuff must be visibly marked. So I'm guessing if it has no marking it definitely wasn't made in China, but also doesn't necessarily mean it was made in the USA. Could have been made in a country that doesn't require Oakley to mark the origin of the glasses by law. I guess for me, if it's not made in USA, I rather not know where, haha.
That's a good point. I don't know when the law took effect. Back in 2005/2006 when the Riddle came out, it caused a stir because it was said it was made in China, yet no country of origin mark was put on it. Same with the original Crosshair. Makes you wonder.