Hobbs Heirloom Premium Batting is made from 80% natural cotton and 20% fine polyester. Perfect for both machine and hand quilting, this needle punched batting resists bearding and migrating. The light resin bonding provides extra strength and durability to your quilts. Prewashing is not recommended. Shrinkage of 3-5% is standard, leaving your quilt with an antique puckered appearance. Ideal for use with medium and dark fabrics, Hobbs Heirloom Premium can be quilted up to 3 1/2" apart. Manufactured and distributed in the USA. Available in Crib Size (45x60in), Twin Size (72x90in), Full Size (81x96in), Queen Size (90x108in), and King Size (120x120in).