Genuine leather jackets is a material created through the tanning of hides and skins of animals, primarily cattle hide.The tanning process converts the putrescence skin into a durable, long-lasting and versatile natural material for various uses.Leather is an important material with many uses. Together with wood, leather formed the basis of much ancient technology.Today, most leather is made of cattle skin, but many exceptions exist. Lamb and deer skin are used for soft leather in more expensive apparels.