after reading what other people said about the sizing on this boot, i decided to buy size 11, even though i wear an 8.5. When i first took them out of the box i thought maybe i should have just got a 10 because they looked so big, but they just BARELY fit. If my foot were a couple centimeters longer then it would have been too small. If you're buying these make sure you go at least 2.5 sizes bigger than normal!