For a quilted jacket I have used muslin for the foundation/batting as I live in Florida. You would cut piece of material larger than required and if printed free motion the design. You may not need to quilt both sides of or all over jacket but you can free motion whatever or how you would like it to look and then wash then cut pattern accordingly. So many options and how you would like it to look - you would end up with a coutour type of garmet. I have also used sweatshirt as base but altered to fit. Good luck