Im a girl, about 5'6 and 125-130lb. what size jacket of this would fit me?
Hmm... I dunno Jane, pretty sure that even a Small would still fit you like a parachute. I'm about 6-0, and the sleeves and chest on an AG Small are just about right for me (not super baggy), so unless you plan on shredding with an evil twin riding piggy-back inside your jacket, I'd stay away from this piece.
Have you checked out the Burton TWC Man-Eater? That sizing might be better suited to your figure. Besides, boys suck, right?
I think a small would fit you well! if need be you can always exchange for a medium. Just knowing how this fits and trying it on. I would say you should start with the small... unless you like it a lil' baggy than hit a medium.
Its such a sick jacket... love the AG on the shoulder!
Follow what Ryan said. He speaks the truth. You will not be disappointed with this purchase.