What is acrylic in a sweater?

I am just gonna give you a simple answer i your question

fabricfabric is a type of fabric made from acrylic fibers, and was first manufactured by the DuPont Company. DuPont no longer manufactures acrylic fabric, but it is still widely manufactured throughout the world. It does use a chemically produced substance called acrylonitrile, which is also used in the production of plastics. Acrylonitrile tends to break down easily in the environment, though there is some argument on this point. High levels of acrylonitrile exposure might be considered toxic, but the quick break down often keeps acrylicacrylicacrylic fabricfabricfabric marketed as environmentally friendly.