Snug and Firm Boots...
Like others, I do suggest going one size up! I went from my usual size 12 to a 13 after reading various suggestions from the reviews. I am glad I did because these boot seems to fit bit more snug and firm. I wore two layers of socks; regular tube socks with wool socks over it. With these layers of socks, it felt snugger while I was able still move my toes without discomfort. I am glad I did not go with the size 12 because then I would have to send it back.
One more thing, I bought these boots to use for snowshoeing and hiking in the snow. The back upper heel area of boots (the lip) seems good for holding the strap of snowshoes.