Polar fleece is double napped fabric usually made from polyester.
It also may be made of nylon, olefin, recycled plastics or microfibers. It is completely machine washable, dries quickly and needs no ironing. Polar fleece was introduced in the early 1980s and is sold under a number of trade names such as Polartec, Chinella, Polarfleece and Polarplus. As a climate control fabric, it is lightweight, soft, warm, breathable and strong. It wicks away moisture, keeping the wearer dry.