I usually wear a 7.5 in boots but opted to go a half size bigger. Thankfully that was a good choice they fit great on & if you have bigger calves then narrow ones the calf portion will not be loose loose around the top if you are wearing them over your skinny jeans. They still provide enough room for blood circulation down to your feet. It's a personal choice with that being said if you want them snug or not. I like them that way I think they look better. :) I'm happy w/ they. They are a little darker then the picture shows, but I will be updating my review to show you guys.