Developed with Harriet Hargrave, the nationally known quilter and author of Heirloom Machine Quilting, Hobbs offers one of the best 80% cotton/20% polyester battings on the market. The combination of long staple cotton fibers and polyester gives you a strong, long wearing batting. It is needle punched and spray bonded to provide exceptional strength and durability. It maintains its loft and needles wonderfully whether you machine or hand quilt. If used straight from the package, it will shrink up to 5% giving you the desired look of antique puckering. 3-5% shrinkage, and will quilt up to 4" apart.