For the price and simplicity though, I am definitely not complaining. The red and black i ordered 7. Wore them the rest of the 6 day trip around a massive resort. Surprisingly high quality Since its a bedroom slipper and to run out to feed the birds on the patio I didnt mind it to fit larger. My only advice is to SIZE UP, but then again I also have a boy with bigger feet than average which could be making me say that . These hooks are easy to use the adhesive is very strong. I finally came to the realization that my not so old sneakers were the culprit. When I received these shoes, the first thing that came to my head was "Im gonna have to return these". Both cards give you a stable connection.