Hmmm...good to know that their sizes are variable. There may still be hope! The kind I tried on was the one with all the holes, which would never fly in an ICU. I was thinking of getting the one that is totally enclosed. I would actually like to get the one with just the air vents and no holes in the top, but I don't know if my feet would be protected well enough. There is lots of stuff that can fall on your feet or things that you can run into in our busy unit. The shoe I tried felt so good, I would liked to have been able to wear it but I would have to stand in one place all night to keep it on.
I'll have to see if I can try one of the other styles.