Leather is a material made of tanned animal hide. It is used to make jackets, furniture, shoes, purses, belts and many other products. Although leather is a very durable material, it is more difficult to clean than natural or synthetic fibers. Leather grain can soak up strong smells, such as smoke, food odor, sweat, perfume, mildew or the "new leather smell" from the tanning process. Getting these smells out of leather may require some trial and error, and when in doubt, you can always get the leather professionally cleaned to avoid damaging the item.