Use a zipper 2-5 cm (1"-2") longer than required length. Finish the seam allowances. Join the fabric layers, right sides together with a standard stitch up to the zipper insertion mark. Baste the remainder of the seam closed. Press the seam open Baste the zipper in place, centring the zipper teeth along the basted seamline and having the zipper pull extending beyond the top of the garment edge. Attach Zipper foot No. 4. Position edge of zipper foot close to teeth of zipper. Move the needle to stitch approx. 7-10 mm (1/4"-3/8") away from center seamline. Stitch along both sides and bottom of zipper. Remove basting stitches. Open zipper and complete the garment.