Sew the Fabric Pieces Together
With the fabrics, trim and ribbon aligned properly, sew them together with a straight stitch (Image 1). Use a zipper foot in your sewing machine. Since the edge of the braid is so thick, it is sewn in just as a zipper would be. Sew the stitch so that it's close to the braiding. If sewn properly, the braid forms the boundary between the two pieces of fabric, and the ribbon is secured tightly (Image 2). Once you've sewn all the way around the three sides (excluding the finished bottom edge), you can turn the slipcover inside-out to reveal the finished cover (Image 3).