So thankful I sized up. I usually wear size 9 but I decided to order 10. These are soooo hard to walk in because the middle part has 0 stretch and the bottoms of the shoe do not move with the movement of walking. It’s just hard plastic. They are so light though, so I guess it’s ok. I haven’t worn them out yet because I’m too afraid they’ll hurt my feet from trying to grip the shoes to stay on :(