its a stiffer but thinner non woven fusible. its most commonly used in home dec projects and the width is onger to accommodate those types of applications.
i like to use it because it makes the bag a little more firm.
i apply the deco bond to the wrong side of the outer fabric and then i apply the fusible fleece on top of that and then i apply the deco bond to the lining fabric (i don't use any fusible fleece on the lining fabric).