I like this carpet Pad, the way it is made seems to be very good.  It has literally thousands of little I would call feet pads on the backing made of rubber to hold it in place on the flooring.  I have wood floors and it stays nicely.  The front side is made of a nice felt and holds on to your rug.  All in all a good buy for a decent rug pad.  I do wish it was a little thicker, so 4 stars.