*Make the seam where the zipper will be applied. Mark the bottom and top of the zipper location.
*Using a basting stitch, sew a 5/8th inch seam.
* Press open with iron.
* Apply two small strips of sewable fusible interfacing or zipper tape.
* Apply heat with iron and peel off top layer of interfacing. If it doesn’t come off easily, apply more heat until it does.
* Lay the zipper down so the teeth line up with the center of the seam. Press zipper onto the glue for 5 to 10 seconds. Just enough to hold the zipper during the sewing process.
*Snap on your zipper foot and don’t forget to back stitch at the beginning and end.
*Sew along side the teeth, letting your zipper foot guide you. When you get to the bottom of the zipper: stop, lower needle into zipper & fabric, raise zipper foot, and turn fabric and zipper so that you are now sewing across the bottom of the zipper. When you get to the other side of the bottom, repeat: stop, lower needle into zipper & fabric, raise zipper foot and turn fabric to face the other side of zipper. Sew to the end and your done. Don’t forget to back stitch. Even go across the bottom a couple of times. Zippers can take a lot of wear and tear.