It's taking a bit to break in but it's almost there.  They fit perfectly around my calves in that I can wear skinny jeans and still not feel like they're tight.  I absolutely love them.  These are my third pair of frye boots and my current favorite.  I'm 5'3 and they are great shaft height-they come up about a couple of inches under my knee.  I think they even make me look a little taller. Like the other reviews, I agree that the instep makes it a little hard to get in and out of the boot at first, but it's been almost a month and it's not a problem now.  I know it's only going to get better.  I highly recommend these boots. I just think they would be flattering on most women.