These shoes are very comfortable but are so bad for your knees. I originally bought them because my heal was hurting and thought that they would help cushion my step. Well they did the job, my feet no longer hurt but they really messed up my knees. I couldn't figure out what was wrong with my knees until I went to the doctor and ended up in therpy. This is where I discovered that they are the worst shoes ever for your knees. So sorry to hear this...I thought I had a good thing going.