Faux, or fake, fur does not contain real fur. The whole purpose of fake fur is to substitute artificial content for actual content, the production of which requires the killing of certain types of animals, mainly minks, chinchillas, foxes, rabbits, and other animals with soft, thick coats required for survival in cold climates. Fake fur is made of synthetic fibers, usually acrylic, that is colored to imitate natural fur.
Fake fur serves two primary purposes: it spares the lives of the aforementioned animals, which are trapped for their hides, and it is considerably less expensive than real fur. Whether fake fur provides equal levels of warmth is a matter of debate.