Premium 100% Cotton. Hoffman Fabrics has collaborated with Kimberly Jahnz of On the Bias Designs to create an easy-to-use foundation piecing pattern that is printed on a fabric panel. Sew fabrics right onto the pattern panel and you never have to rip paper out again! Everything needed is printed ON the pattern panel including the foundation piecing templates, fabric requirements, original quilt image and instructions. Each pattern panel is 2 yards in length and comes packaged in a bag as a single unit like a pattern.