Alright, this boot, where do I begin. I ordered a half size up because I read they run small. They still felt cramped even after a day and a half of wear. Now the boot, in my opinion, is made true to size. The problem here is that the waterproof lining and the ortho insoles (which are very thick) and the design of the boot which seems to be snug like a sneaker ,all together, causes the boot to feel small. I changed the insoles for more regular thickness ones and they fit fine. Snug like an athletic shoe, but they fit.