I bought a pair of Oakley Holbrook 9102D255 of Groupon and everything except two things seem legit. The first thing that made me question there authenticity was on the box it says they were assembled in the U.S. it does not say that on the glasses just on the box. The other thing is it does not have L4 or R3 on the inside of the hinge. I think it may be because they have the partially transparent frame but am not sure. Any info would be great!