Backstitch is a stitching technique that involves creating small in and out stitches to tightly fasten two material pieces together. This technique provides durability and stops the material from unraveling. The sew together is used for a variety of stitching projects, such as hemming, sewing patches, or even creating blankets. It offers a neat and professional look to the finished item.

Whipstitch definition of whipstitch by The Free Dictionary