First, I researched, but since one can make you crazy by some Rezesionen itself. Chemical smell, dangerous to health, etc. We decided yet for the "plastic pad. A good decision! We place anyway a towel / towel during winding on, as the little girl like "running" times during the winding. In such a case, the towel is quickly wiped in the laundry and changing mat ... A material support would have to be constantly washed completely. An unpleasant odor we could not identify.