a HP question...

Do we know what Auror robes look like? Is there a description anywhere in the books? I suck at remembering such details, and have read each book only once. (I'm not going to be kicked out of HP fandom for admitting that, am I? *looks around nervously*) If there were Aurors in any of the movies, pointing me to a screencap would work too (um, I haven't watched any of the movies, so I don't know if Aurors appear).