Great jacket! I have very broad shoulders and found the jacket to fit great across my shoulders which almost never happens. I can see how someone with a larger chest could may need to go up a size. For me it was perfect but I can't put more than a thin sweater underneath this jacket.

The area around the hips could stand to be a looser. I found the hip area VERY snug. I do have an hour glass figure so those with not so much curve would probably find it more comfortable.  This jacket does look very flattering when on.

I wore it in 40 degree and very windy weather yesterday and was comfortable.