I think Batman is the only one cool enough to wear this, but if you are up for it you can have a utility belt like the one from The Dark Knight to hold your iPhone, Wallet and shark repellant gas. It does look like the real deal.
It has a bronze metal finish, chrome studs, adjustable buckle, and is made of cow hide leather. Limited to 750 and it sells for $149.
You can order one over at Universal Designs.