What I have noticed about this product is the rubber sole has started to separate from the upper part of the shoe both left and right shoe and I have worn them 3 times. At first I was extremely happy and even ordered a second pair which I have not worn but upon examining the left shoe has the same problem so it is faulty workmanship. I don't know what I can do about the ones I have worn 3 times but I will be returning the new ones. If you purchase this product make sure you examine the sole.