I'm regularly a 9.5 in tennis shoes so that's what I picked for this boot and that was the perfect, the heel height and thickness of the heel is great. I'm 5'8 1/2 and usually wear a size 0 in pants so I was pretty excited reading the reviews because it sounds like this boot was made for people with thinner thighs. I tried the boot on with pants and they looked great, they're just a little big around my thigh but I can just wear socks to hold them up and also the boot only went up to a little above the knee and I wanted more mid thigh but I still love the boots and I'm going to keep them.