AT09 Hoodie Question

[oneheart]

I'm really interested in the hoodie here:

http://www.yesasia.com/us/ayumi-hama...0-en/info.html

But I don't want to pay so much money for something if it doesn't fit really well...Cause I'm a size small adult (by North American Standards) and I dunno what size it'll be.

Or am I better off getting a ladies size?

If someone has this can they tell me if it fits well? or if it's humongous...