The MBT brand offers a lot of comfort and back/foot/posture support. More comfortable than I expected. This particular style didn't fit.  Have others that do and love them.  Sizing seems to wander a bit, sometime just the size I wear sometimes much too big.  Gets expensive in the shipping department to exchange.  Also they sell out and you can't get the size you need.  Mostly I love them but the price is hideous. The need to be about have the price(as these were at Amazon).  Then I'd buy many, many more.  I have somewhat wider feet with narrow heel, average size 7 or Euro37.