Heavy fabrics are fabrics that are thick and dense, usually made from natural fibers such as wool, cotton, or linen. Brocades are a type of heavy fabric that is woven with an ornamental raised design, often featuring intricate patterns and motifs. Brocades are usually made from silk, but can also be made from other materials such as wool or synthetic fibers. They are often used for formal wear, upholstery, and drapery.