American Apparel (AMEX: APP) is the largest clothing manufacturer in the Unite States. It is a vertically-integrated clothing manufacturer, wholesaler, and retailer that also performs its own design, advertising, and marketing. It is best-known for making basic cotton knitwear such as t-shirts and underwear, but in recent years has expanded to include tank tops, dresses, pants, denim and accessories for men, women, children, babies and dogs. The company is known for a number of progressive policies including promoting immigrant rights and labor policies the company dubs "sweatshop free."