Sizes run small. I wear a 7.5 to an 8. I ordered an 8 and my toes were smashed up against the front inside while walking. All that fluff in there takes up a lot of room! These boots looked so big on my feet. My feet would look ginormous if I were to buy a size up to fit. The style wasn't exactly what i wanted when I tried them on either. I've never bought boots before, so I'm having trouble finding a good style for me. Back to searching I go.