These sandals are very cute! They are some kind of plastic. They are all one piece, I mean on other sandals they are usually made up of parts like an upper that goes on top of the foot and then a sole. Not all sandals are 1-piece. I really like them, they are exactly what I was looking for. I just wanted something I could easily slide on my feet. I didn't want to spend a lot on them because I would be using them in camp where they would be thrown in the landfill. I chose black. Now I usually…