This is hard to understand, I ordered the wheat in my normal size 10 and it was very much too large. Thought they just ran large so tried ordering 9.5 but not available in wheat so got the bison color in 9.5.  Received and they were too small so I'll try once more this time the bison in size 10 and they fit perfect and all were M width. For what ever reason the wheat color were like size 12.  Maybe just marked wrong. However the last that fit are really nice and I'm glad I pursued getting something that would fit.  Great shoe when it fits !!  DK