I think almost any shoes with oil on the soles might cause you to "hydroplane" on a wet surface. I have a lot of back problems and crocs have been a life saver for me. I can really tell a difference between how I feel when I wear any other shoes for a day, and how I feel when I wear crocs. I have bought several pairs and when the tread starts to disappear, I figure they are ready to be replaced. I have noticed a lot of people in the medical field wear them to work . When you are on your feet all day, it makes a big difference. If I ever found out they were being discontinued, I'd try to buy a lifetime supply! :thumbup: