These are beautiful papaya orange shoes, and I got lots of compliments on them the one time I wore them.  However, they wouldn't stay on to save my life.  The design of the back caused them to constantly slip off my heels as I tried to walk, so I looked ridiculous.  I have narrow feet and I usually wear between a 7-7.5.  Based on other reviews I ordered 7.5, which was a mistake, but I don't think a smaller size would help much to keep the straight heel from slipping off constantly.  If it included silicone pads in the heel and toe area, I would give it another shot with a half size down.  Returned.

They do show every single mark that they possibly could. I had to (try to) clean them of marks very frequently.