TERRIBLE QUALITY CONTROL.  I've gone through FOUR pairs of shoes in an attempt to get a pair that has the soles of the forefoot and heel on the same plane.  I wear orthotics so that my feet strike the ground without twisting.  With these shoes the forefoot's sole is not always on the same plane as the heel's.  Your heel strikes the ground and then your foot twists (noticeably) to accommodate the forefoot's different sole plane.<br /><br />On some shoes it was the left foot, on others it was the right foot.  New Balance used to be a brand that you could trust to be built properly.  I'm sad to say that after 15 plus years as a customer I'm going to have to find another brand to wear.<br /><br />One last comment.  This version of the MX857 is much narrower than my last one, purchased a little over a year ago.<br /><br />The only bright note has been Amazon's customer service.