Leather is a durable and flexible material created by the tanning of putrescible animal rawhide and skin, often cattle hide. It can be produced through manufacturing processes ranging from Cottage industry to heavy industry. Several tanning processes transform hides and skins into leather: Leather_usually vegetable-tanned_can be oiled to improve its water resistance. This supplements the natural oils remaining in the leather itself, which can be washed out through repeated exposure to water. Frequent oiling of leather, with mink oil, neatsfoot oil, or a similar material keeps it supple and improves its lifespan dramatically. Leather with the hair still attached is called hair-on. In general, leather is sold in four forms: Less-common leathers include: There are two other types of leather commonly used in specialty products, such as briefcases, wallets, and luggage: The following are not "true" leathers, but contain leather material.
Contributions by Smile a While, 18.104.22.168, and Knife Knut.