I am in love. I wasn't sure Id find a boot that was waterproof and comfortable to take fairly long walks with my dogs in. I found them here! I have large calves (17 inches around,) and I can still fit my finger around the edge as these hit just below the larger part of the calf. So no rubbing or tight problems. They are waterproof but not too heavy. They are non slip and very cute. I have average width feet. I am an 8 and ordered an 8. But, if you have wider feet, Id order a size or 1/2 size up. They are tighter around the instep curve of the foot. These aren't a problem for me, as I have average width. I going to order a pair for my daughter who lives in Chicago.