I purchased this rug pad based on all the rave reviews here. While it is nice and thick and offers great cushion under your rug, unfortunately this product has some real problems that no one has mentioned. First of all the rubber backing is 100% Latex which produces a foul odor that smells like burning rubber. Unfortunately this chemical odor does not go away with time, nor with letting it air out for a few days outdoors. The warmer the room got, the worse the smell was. Many people are allergic to latex and if you are at all sensitive to chemical odors, then do not purchase this rug pad! There are other rug pads available here at Overstock that use organic or non-latex materials. The other (albeit minor) complaint is that the felted portion of the rug constantly sheds loose fibers. I have already vacuumed and dusted three times and there are still little airborne fibers everywhere--besides being a cleaning nuisance, the fibers get in your eyes and on your skin. Sorry to say this rug pad is going back.