A bit of Walking Foot Trivia........The Walking Foot was not invented for quilting. The technique has been around for a long time. It was originally developed to be able to sew plaids, stripes, velvet and other difficult fabrics in garment making. The system enables both layers of fabric to move at an equal way under the pressure foot of the machine since the feed dogs tend to pull the bottom lay away from you and the regular pressure foot to push the fabric toward you thus getting the layers uneven. That is why it is so useful to quiltmakers as multiple layers of the quilt being sewed (quilted).