I had an opposite experience from other buyers. I always wear a size 11, which is what I ordered. I thought the boot was very cute and would've loved it if it didn't fit so tight. It was tight in width (I always wear normal width - M,) and it was very tight in the length. Wasn't as small as a 10.5, but it was close. Disappointing since the boot looks perfect for cold weather. If they had an 11.5, I'd order it again!