I typically wear a size 7 1/2, however, when buying these boots, I always order a 7 and it fits great. I have been purchasing these boots in both black and tan for over 5 years lol. I love them. They are the perfect riding boot and very affordable. The price has gone up some in the past years, they used to only be $20!  I love them and they last me so long it's amazing the quality since they aren't brand name. If you have larger calves they may not work but other than that I think they're great. They come right below my knee and I am 5'3.