yeh - he was originally DQ'd for that (rulebook now says you can't have more than 10cm of flesh between the top of the bottoms and bottom of the top) as it's "illegal equipment" but he seems to have won an appeal I guess. he should have been DQ'd on "fashion from the 90's" grounds....
I caught him up when he was in deep discussion with the motorcycle referee. Staying too far back to draft, I didn't catch anything of the conversation but put 2 and 2 together when I saw the DQ. I was annoyed because I couldn't safely overtake and they were there for 2-3 minutes. Last thing I wanted was pinging for drafting the referee, but not a lot I could do in the circumstances!