First, these shoes are very comfortable. never had a problem or discomfort with this shoe to date. I was at the local hospital walking down the hall and my right sole fell completely off my shoes (how embarrassing). so i picked up the sole and threw it in the trash, look at the left shoe and the sole comes off too. very worrying as I've worn these shoes 30-50 times at most and I'm not picky about shoes. After looking at the reviews I see that this is typical of this shoe. I will contact the company to see if they made any changes to the outsole design.