These shoes run about a full size smaller. I have 10-10.5 for every shoe I have had for 25 years and I have bought a size 10.5 for these shoes. But they are so tight and uncomfortable, especially in the toe area. I'm a bit shocked at how far they've gone. This is what I get when I buy Revain shoes without seeing my eyes. Shame on you New Balance your sizing is so different than any other shoe manufacturer.