Ah, see, I assumed it was a skating jacket, because it seemed geared for cold weather. And I didn't realize the thumb-holes had an actual purpose, besides looking elegant! But then, I've never had trouble with sleeves riding up, so I never would have guessed.
I don't recall the brand of my jacket, but I found it at Marshall's for $15. It's a half-zip pullover jacket, with a high-neck, thumb-holes, and a pocket for your iPod at the back hip. But I can't find a hole for the headphones to thread through, so I'm not entirely sure what the point of having the pocket is. Are you supposed to leave it half-zipped and let the cord hang out through the zipper? Seems like that would defeat the purpose.
(Sorry, I'm new to the world of modern athletic gear. . . .)