This mat is perfect for our high traffic mud room.  I have tried several others and they have not worked out for us.  This one is a winner!  It has a rubber backing that stays put on the floor and does not move around when stepped on.  It is thin enough that it doesn’t get stuck under the door.  The pattern of the fabric is in a way that it will help catch salt and small rocks from my kids shoes.  I will be getting a couple more of these for our other doors.  Highly recommend.