Purchased 2 pair to take on a cruise, I wanted to have something to put in my purse in-case I had to take my heels off.
There is not much to them, very flimsy and thin soled, they run small in size, I wear 8.5 and the larges were to small but stretchy enough to work in a pinch, the extra large fit better. I ended up not having to use them and not sure I ever will I don't think they are much better than barefoot. Maybe I will use them around the house for lounging or something, they are not very comfortable though.
I would not purchase again and would rather find a pair of somethings at the shoe store so that I could see them before purchasing.