When this first arrived, I was impressed by how grippy the back part of the mat is. We put it through the wash, of course, before using it, making sure to follow the directions on the packaging. But when it came out, that really good grippiness was gone completely. I still like the mat (it's super absorbent), but we did have to go out and buy the grippy tape to go on the back of it for safety reasons.
See full review