I was a little surprised when I received this that the instructions said it should not be allowed to be exposed to excess moisture. It is called an outdoor door mat. See the title above. Also, it is much thicker than I expected. I like it overall, but I haven't had a chance yet to see what will happen when it is exposed to moisture, which it will be because I am using it just inside the door to my screened patio, and sooner or later it will be exposed to blowing rain.