Headphones for my mp3 player

Just got a Rio Karma and am in need of some better phones for it. I hate ear buds cause they always make my ears hurt and I'm not a huge audiophile so two of my main concerns are durability and compactness. The player produces 60 mW per channel and I'm looking for something in the 50$ price range. Any suggestions? I would like them to be foldable and not TOO bulky. Thanks for any help.
-Sand Man

http://www.audioadvisor.com/store/pr...0%20Headphones

I got these for christmas and I love 'em. They are so much more accurate then my previous Jensen phones. They are an open air design so if you need these phones to be quiet they aren't for you. And yes they are foldable. You can read some reviews on this website of them.

-Joey