I love these boots! They are so cushy and comfortable to wear and I love the way they look. They are even better than I was expecting. I did order a 1/2 size bigger than I normally wear, just because it was cheaper and if I decide to wear thicker socks with them. They fit perfectly and I am so glad I did order a bigger size. I live in Alaska and it hasn't hit the "nasty negatives" yet, so I will have to come back and update whether or not they keep my feet warm in extreme negative temperatures. We don't have snow on the ground yet, but my feet do stay very warm. I am extremely happy with my purchase! If you are thinking about getting these boots....buy them! You will not be disappointed!