These are the worst New Balance Shoes I have ever worn.  I have been wearing NB for approx 5 yrs and these make my feet hurt so bad at the end of the day that I can't hardly walk in the evening.  I should have sent them back but 30 days already passed by.  I tried them and then waited a couple of days and tried again and every time my feet hurt so bad.  I don't know what is wrong with this model but the sole is like concrete and not the same kind of  flexibility like the others also the heel doesn't have the same cushioning either.  The other that I have worn was the 574 and the 574.  It seems like the higher the number the worse the shoe gets and the price goes up as well.  Now I have to find another brand of shoe to wear for work, I need an all black shoe.