I had a piece of fake leather that made a great tire boot. My bike is on it's way to San Francisco, I can't remember if I packed it (it is not on my packing list for the bike box) or if I misplaced it. All I can find right now is an old piece of jeans materiel. Would that make a pretty good tire boot? I have read a dollar bill will do (or a $100 if you are rich ) so I guess a piece of jeans would do?