Sleek fabric is a term used to describe fabrics that have a smooth, glossy surface. SATIN and sateen are two fabrics that fit this description. SATIN is a lightweight fabric with a glossy surface on one side and a dull back. It is usually made from silk or synthetic fibers. Sateen is a heavier fabric with a glossy surface on both sides. It is usually made from cotton or a blend of cotton and synthetic fibers. Both fabrics are known for their luxurious look and feel.