Over 1000 generally positive customer reviews on Amazon, says that many people have found this product to be of use in their attempts to relieve lower back pain and discomfort. The Relax-a-Bac is essentially a supportive cushion that you can use anywhere from your car to your computer chair. The manufacturers have designed a good degree of durability to the product which means it should keep performing even after a lot of continuous use. The manufacturers claim that the design is “orthopedic” which implies that there is some science behind the actual shape and size. We cannot comment on this other than to reiterate