US international Timothy Chandler's coat is quite fancy. Check it out.
I assume that if Winterfell really existed, and Eddard Stark wasn't a head shorter thanks to Joffrey Baratheon and Ilyn Payne, he'd be sporting that coat. I'm also confident that it would be the latest fashion rage in the northern region of Westeros.
I wonder, does the jacket come in black? The Night's Watch would probably enjoy that fur lined hood as well.