1.     Nylon. Nylon is a type of synthetic (man-made) polymer (similar chemically to plastic). It was first developed by the DuPont factory in the 1930s. It has a silky quality and was used to make women’s stockings in the 1940s and soon became an artificial substitute for products (textiles and otherwise) made from silk. Tights, leggings, and swim suits are commonly made from nylon, as are many military products.

2.     Polyester. Polyester is a category of polymer that is used to make everything from synthetic and partly synthetic fabrics designed to look and feel similar to cottons, wools, and other natural fabrics. Plastic wear, such as bottles, films, holograms, and canoes can also be made from polyester.

3.     Acrylic. Acrylic is another type of polymer  that contains at least 85% acrylonitrile, a chemical compound similar to vinyl. It is soft and has a wool and cashmere-like feel to the touch. However, it pulls and frays easier than what it’s imitating, in addition it does not insulate as well as the natural fibers.  Although it may look as though it will keep warm, be wary of harsh winters.