I have an NB 771v2 in 9 4E and they fit perfectly so I bought them the exact same size/width and couldn't even fit my whole foot in either shoe. Next to 771v2 it's VERY obvious that this is NOT 4E as advertised even though the tongue label says so. Approximately 1/2 inch narrower (SEE IMAGE) than the 771v2. Very disappointed with the width difference between the models. I'm sending them back and need to go to an actual store to try them on before buying another pair. :(