As if the "CHANEL" jacket was not torturous enough, I'm such a glutton for punishment that I decided to do a pair of couture pants. When doing couture sewing, there is thread tracing. Couture garments are generally marked with thread because it's a durable marking that is visible on both sides of the fabric. I marked my stitching lines on the garment with chalk. I thread traced the seamlines, crease line (lengthwise grain), crotch line, the fly opening, stitch line for the zipper and the welt placement.