I have a few wool coats but want to get something warmer. I am on the East Coast. Don't really like the way puffers look so I was thinking of getting a wool coat with thinsulate but have heard that they are heavier. Is this true? Also, if you get a wool coat with Thinsulate are they tighter ie do you need to go up a size? Don't want to do the double layer wool because that seems like it might be too heavy. I guess if puffers are the warmest thing I may have to get one. What do you ladies think?