I know I saw it somewhere, but you think I could find it now? No.
A little while back, I was reading somewhere in a book (whether as an item description, something a character was able to do, or a rule for items like that) about how a cloak gave a bonus to a character. I think it was like +2 to concealing a weapon and +1 to AC because you were whipping it around and your attacker couldn't see past it. It might have even been a class's special ability at some point. I wish I remembered, but I would like to know more about this, if anyone's got knowledge on it.