I have several Norwegian Wool jackets and they are all beautifully made and very toasty. This one is no exception. The durability of the fabric and warmth of the down insulation make it a pleasure to wear every time I put it on. It's also extremely lightweight which seems almost paradoxical. These jackets do run a little large, as they are sized to be worn over a blazer. I am a size 38R and I can wear either a small or extra small from Norwegian Wool. The small fits just a bit big, again, to fit over a blazer. The extra small is perfect if you have just a sweater or shirt on. It gives just the gentlest hug, but still lets me move completely freely. I am extremely happy with this purchase!