Step 2
Match your front pieces and back pieces with right sides together. We are going to pin and sew along the marked areas. But first, it is highly recommended that you use a basting stitch first! Set your machine to a straight stitch at the longest stitch length. Stitch the marked areas.
A basting stitch is meant to be temporary, but this will make elastic application much easier!
After these areas are basted, you can sew your final stitch and add your 1/4" (6mm) elastic at the same time. You do not want to stretch the elastic at all- the goal is for it to sew on evenly. You can use an overlock, zig zag, or stretch stitch of your choice.
For more information on how to sew elastic, click here. There's much more information than can be encompassed in one tutorial!