Hi,
I've just received a mont bell UL down vest which seems good (light), and has a great fit on the chest + shoulders.. however, despite my waist being in the middle of the size range there's a lot of extra material at the bottom.
I want to add a draw cord to the hem at the bottom, which seems easy enough because it can be opened up at a vertical seam at the perfect spot and without getting into the down. This cord would come out with a toggle at the side, similar to most jackets… but I can't work out how to attach the ends by the zip?
Will I get away with just running a bartack (or two) over the hem at the zip end to sew it in place? Other jackets I have seem to have it looped around a piece of ribbon inside the hem.. but is that necessary?

