Tanning is the process of treating skins and hides of animals to produce leather.Tanning hide into leather involves a process which permanently alters the protein structure of skin, making it more durable and less susceptible to decomposition, and also possibly coloring it. To know more about it, click on the following link : https://www.leatherjackson.com/blogs/news/best-tricks-to-identify-original-leather?_pos=7&_sid=89805f9f0&_ss=r