Am just finishing up a smallish (24 x 24") quilt that I backed with polar fleece. Handquilted it however, so don't know how successful you might be with the stretch factor. It looks nice and I do plan to bind with a typical cotton binding. I didn't use and bat and it won't experience a lot of hard use. Let me know how you do, or better yet, send a pic of the finished quilt. Nothing ventured, nothing gained?