What Is Whip Stitch In Sewing Wayne Arthur GalleryOvercast represents a sewing technique that involves making small in-out stitches with the purpose of securely connect two material pieces together. This method provides resilience and avoids the fabric from fraying. The overcast is used for a selection of sewing projects, like sewing the hem, sewing appliques, or even creating quilts. It offers a neat and skilled look for the finished piece.