Leather is a strong, flexible and durable material obtained from the tanning, or chemical treatment, of animal skins and hides to prevent decay. Leather can be tanned in many ways, but the most popular and well recognised methods are chrome tan and vegetable tan. Even though leather is used widely in the world, there are still people who go against the process of leather tanning and using leather as a material, because it comes from animal skin, but actually leather tanning is a very important part of the environment and if the production of leather stopped the impact this would have on our global waste pile would be huge, because the animal by-product would still be there left unused and thrown away.