I have had 4 hip surgery the last of which caused permanent nerve damage in my quads, this is the best shoes I have ever worn for work.  I'm on my feet for long periods all day a nd these paired with micro fiber bamboo socks has made it so I can walk so much better and I have no pain in my feet!.  I have tried shoes after shoes all my life and never felt like this!  They inner soles are soft so my leg length discrepancy isn't so extreme and helps me balance better not so much strain on knees.  The inside also has upper cusining on tghe top of my foot which feels so wonderful.  I will buy these from now on I hope they never stop making them!