I normally wear a size 7; I ordered a size 6 and it fits perfectly with no socks, which is how you are supposed to wear these I guess. Its like having slippers on...seriously; very comfortable and very soft. And my feet are warm, no more cold toes; no sweaty feet, just warm. Like the other reviews said, it was a little snug pulling the boot on, but once on it all feels fine; I can pull the boot off no problem. I just couldn't be happier. I wish I had bought these years ago!