Random Riddle: Where’d You Get It?

Two men are sitting on a bench waiting for the bus. One is dressed very nicely and the other looks like a bum.

The bum says to the other, “I really like your shirt, where’d you get it?”

The second man replies, “I bought it at a very exclusive shop, I’m sure you’ve never heard of it,” clearly annoyed at the bum’s question.

The bum, clearly annoyed at the rich man’s snobbish behavior, says, “Is that so? Well, I bet you $50.00 I know where you got your shoes!”

The rich man took him up on the bet.

What answer got the poor man the $50.00?
 

Random Riddle: Where'd You Get It?