4. Pin or baste sides leaving the top open.
5. Measure from the top or open end of the bag ½-inch and mark with chalk.
6. Take another measurement from the top, this one 4 inches down and mark.
7. Stitch a ½-inch seam from top to first mark, and fasten or back tack thread. Stitch below second markings. Leave the space between markings open on both sides of bag.
8. Make a ¼-inch slash in the seam at lower markings and finish openings with ½-inch hems.
9. Make a 2-inch hem at top. Stitch through the center of the hem to make a 1-inch wide casing and heading. If you are making a swimming bag, why not line it with plastic. Either use a sheet or plastic bag. Make it the same size as your bag.
At this point place the plastic under the hem. Pin or baste into position. Turn right side out. Stitch hem. Use long stitches 6 or 8 to an inch when sewing plastic. Small stitches will cut it.
10. Make or buy the cords for your bag. Make two cords ¾ inch wide finished, 1 yard each in length. (See apron sashes—Phase 2.) You may buy cotton or nylon cord. For a small bag use size 100; use size 150 for a large bag.