When I received this shoe in Medium (D) width I felt like the wicked stepsister trying to get into Cinderella's glass shoe.  Since I've been wearing D's for over 30 years, it had to be the shoe.  Went to a local sporting goods stove and asked to try on the same shoe in D.  They informed me that nobody can fit into a D for this particular shoe.  They only carry Wide sizes.  A D = 2E (2 Extra wide).  Fit like a glove.

Funny New Balance hasn't told the factory about this.  Save the cost of return postage and try all New Balance locally.