Made with 100% super wash wool. Carded and resin bonded to help resist bearding & migration. Washable – Hobbs recommends washing in tepid water by hand and laying out flat to dry. Will not shrink. Can be quilted up to 4″ apart by hand or machine. As a natural fiber, wool breathes better than other fibers and acts as a natural insulator helping to maintain a comfortable temperature in summer or winter.