New Balance has made some very poor decisions in redesigning my favorite shoe, the WW811 Walking Shoe. The WW812 now has a lower back, so that the shoe does not grip the foot at all in the back.  With the toe of the shoe having two elastic gores which stretch with each step, the shoe constantly slides off the foot. This shoe would be more properly called a "Slide" than a "Mule" style. I had previously worn the 811 shoe for several years (4 pairs), and it was the most comfortable walking shoe ever.  I have had 3 failed foot surgeries, and the wide toe box on this shoe prevented excessive pressure on my toes. I am returning the WW812 shoes, and would advise anyone who previously bought the 811 style to not bother trying this revised shoe.  It is a disaster.