The fur of animal fur is generally divided into two or three types. The bottom layer is fluff, thin and light, but the output is low and the price is high; The upper layer is bristle, and the color of fur usually comes from bristle. Some animals also have middle layer hair. If the hair is removed and turned into leather, such as sheepskin, leather is more commonly used as a shoe material and can also be used to make clothes.

Fur refers to the leather with fur of animals. It is generally used for making cold resistant clothing, but also for clothing decoration. Some animal protection organizations think it is inhumane and organize boycott activities against fur clothing. In 2000, the United States issued a law prohibiting the import, export and trade of cat and dog fur to protect pets.