How to sew a Drawstring Waistband and Flat Braided Elastic Pants

A drawstring waistband and flat braided elastic (No topstitch on face side) Side slant pocket Double welt pocket Fly front zipper The white strip is just a PP strap. (15:05) This is in order not to slide while sewing (sewing gap). When the thickness of the fabric is different, the pressure of the presser foot and the feed dog are not stable. Putting this tape means adding the height, this is very useful. It is used for stitch guide in this case. The pink tape is made of urethane foam with a sticky surf