A Hong Kong seam can mostly be found in pants, dresses, and coats. This seam gives a smooth and lightweight finish on both sides.
Cut 2 strips of bias tape that are at least as long as your seam and about 3/4 of an inch wide. You can either use pre-made bias tape or make your own.
Insert one edge of the seam into a folded strip of bias tape and pin. Stitch along the fold line, back stitching and the start and end.
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