I am diabetic. I was having some issues with my feet, so I went to see my podiatrist and she recommended Crocs Rx. I purchased my first pair of Crocs directly from a rack in her office. It was the best and most comfortable shoes I have ever owned. They truly are Ultimate Cloud. The fact that they are infused with colloidal silver makes them fungi resistant. What is not to love about that! This will be my second pair.