I have NB 977 Boots, Men's 9.5 D, and 883 running shoes, same size, that fit perfectly, but these 955's in the same size run really small.  My foot goes in but my toe whacks up against the hard leather toe box.  Not at all roomy; they looked small when I took them out of the box and they are.  I"m unhappy and I'm sending them back.  I have not had this problem with NB before.

If you order them go up a size but be prepared to return them.