A narrow finished seam with a couture look, where the raw edges are completely encased inside the seam allowances: With wrong sides together, stitch a 3/8â€ seam; trim the seam allowances to a scant 1/8â€ and press open. Fold the fabrics right sides together along the stitching line and press. Stitch ¼â€ away from the fold; press seam allowance flat, then to one side. Often used on sheer fabrics.
In sewing, this seam is used with transparent fabrics and light fabrics, it is a self-neatening seam that encloses the raw edges of the fabric. It is sewn by placing the right sides together, sewing the seam, then turning the seam to the inside and sewing another seam to enclose the first.