While tufting, this fabric serves as the so-called primary back, i.e. the material that is stretched on the frame and acts as your "canvas". Since this fabric is exposed to constant stress during tufting, it is of crucial importance that an extremely robust and tear-resistant material is used. This is the only way you can be sure that you can complete your tufted work of art, even after many corrections attempts, without risking damage to the backing material. We use exactly this fabric for tufting and have not yet managed to damage or tear it while tufting.