I have worn this model shoe and its predecessor for at least 12 years. The 940 v.4 fits just like the previous versions. I am not a runner but do over pronate and use these shoes for walking. In the past I used custom insoles but now use commercially available insoles. I have a narrow foot and appreciate that New Balance makes several shoes in narrow or AA width. The shoe does run short. I wear a 7.5 or 8 in other shoes but size up to 8.5 for these. That sizing has not changed over the years I have been wearing this shoe. Service from Holabird Sports was excellent with very fast service.