Words or phrases to describe how street beggars typically look?

I'm writing a scene in which I wish to describe a typical street beggar - his way of dressing in particular. Check for example such a dude as the one below

I could use descriptions such as: snobbish, dirty, bizarre, rugged, barbaric, etc but feel those are not adequate to building a picture of a beggar in the minds of my readers. I want words that would describe a sort of beggar that typically, you'd wish to avoid - one very pitiful, but also repugnant?

What words or phrases would you use for such a description?

Solution 1:

I've also struggled to find words to describe the derelicts that seem to be continually increasing. That's one word I'd suggest - derelict. Other appropriate words might include scummy, filthy, sleazy and stinky.

P.S. I'm not dumping on the poor, by the way. I've run into too many of my former students among them here in liberal Seattle. But it does take a special person to work with some of the wretched people one encounters on the streets - er, the sidewalks. There's another good word - wretched.