years ago when I did my first quilt, I used double knit just made sq. because I didn't know anything else. I used a solid color double knit on the back. it was just a single quilt for my son he is now almost 30 and he still has the quilt, it has washed up great. no worn out places, which is surprising the way he treats it. and with dog/cats. nothing inside. I still like using them for lap quilts at nursing homes. because they don't take care when washing them. also good for camping etc.