Which seam completely encloses raw edges and is sewn on the wrong side?

• A. Interlocking Fell / Self Bound Seam
• B. Overedge / Zig zag seam
• C. Running Stitch
• D. Tacking

Answer: (A)

Finishing raw edges by encasing them in the seam is about creating a bound edge. The interlocking Fell or self-bound seam is designed to wrap the raw edge with fabric and stich it so the edge is fully enclosed within the seam allowance. Because the binding is built into the seam, the stitches are made from the wrong side to hide the finish inside, giving a neat, enclosed edge on the inside of the garment. In contrast, an overedge or zigzag finish just protects the edge from unraveling but doesn’t enclose it entirely, while a running stitch or tacking is not used to finish edges at all.