Quilter's grade flannel-more tightly woven and with a slightly shorter nap than standard makes for more accurate piecing. I plan to use this fabric as a quilt back. The color is true to the online thumbnail, and It's purple looks like it would blend with other purples more "pink" or "blue." As a bonus, MSQC cut the piece within a couple of threads of perfectly on grain, so I don't anticipate wastage.