Which seam eliminates raw edges, especially for sheer fabrics or fabrics that are frequently laundered?

• A. Overedge / Zig zag seam
• B. Slipstitch
• C. Plain Seam
• D. French Seam

Answer: (D)

Finishing raw edges to prevent fraying is the idea here. A French seam encases the raw edge inside the seam itself: you sew with the wrong sides together along a narrow seam, trim close, then turn the fabric and sew again with a slightly wider seam. The edge ends up sealed inside the seam on both sides, so no raw edge shows. This is ideal for sheer fabrics that fray easily and for pieces that will be laundered often, because the finish stays neat and durable through repeated washing.

Other finishes leave the raw edge exposed or require stitching that doesn’t enclose the edge, so they won’t give the same tidy, fray-resistant result on delicate fabrics.