First of all I have exact kind of shoes what I have, but it is going to be worn out. I decided to order a new pair with size 8, but it was too small and toes hit the end of shoes. So, I did exchange for little bigger than 8. it was 8.5, but still too small because toes still hit the end of shoes. I was puzzled.  So I studied the design of shoes. I noticed the material at the end of heel is somewhat slanted forward, not straight. It seems defective.<br />I must alert all customers for not buying them. I am great disappointed with the design. Therefore, I decide to keep my old pair.  Too much troubles with exchanges.