Stay-stitch the bias edges
One of the most important steps you take to keep the cloth from stretching out of shape is to stay-stitch the edges. Stitch along the curved and bias edges. These edges would be the neck, shoulders, waist, armscye, and upper hip line. Stay-stitching is done on each piece separately, through a single thickness. Stitch ½ inch from the edge of the cloth, or ⅛ inch from seamline.
OUTSIDE CENTER BACK OUTSIDE CENTER FRONT OUTSIDE CENTER BACK