At one quilt shop where I first saw the 10/15 minute runner(probably will take longer!) HA!! They put more of a liner in the runner, rather than batting: the younger generation do not like the puffy/old fastion look of batting. I have used a variety of linings: warm and natural, polybatting, and different weight pellons. I think it needs something, if for nothing else; body. I still like the look of cotton batting after it's been quilted.....maybe I'm "old fashion" that way.