I didn't buy these through Amazon, but felt I should add that they are the perfect fit around the calf. One thing that has bothered me about the recent trend in boots is that they seem to all fit very baggy, which to me looks sloppy. These are perfect for work and very comfortable - I was worried the zipper might dig into the back of my heel but the flap of the pvc (fake leather) folds over enough so you don't catch skin or your pants, or rub against the zipper.

While they aren't real leather, they do look and feel like it, and the material is very warm and sturdy. I honestly didn't even realize they weren't leather until a few days after I purchased them, so don't even worry about that. Haven't scuffed or changed color despite all the salt on the ground right now in NY, and all-in-all I'm pretty thrilled.

Update: It's now winter 2014, and they've held up for two winters quite nicely. A few seams are starting to look a little messy, but for a pair of non-leather boots I wore almost daily for two falls and two winters that's exceptional.