The rough and grainy types of leathers are known as Shagreen and were formerly made from the back of a horse, or that of a wild ass.

The tawing technique uses animal brains or other fatty materials to alter leather. The supple suede-like hides are usually smoked heavily and are known as Buckskin or brained leather.

Leathers commonly used in the manufacture of briefcases, wallets, and luggage, are made from Belting Leather, and Napa Leather.

Belting Leathers are full grain leathers that were formerly used as pulley belts and in other machinery. Found on the surface of briefcases, portfolios, and wallets, Belting Leathers have a thick, firm feel and smooth finish. Napa Leathers or Nappa Leathers are extremely soft and supple, and are commonly found in higher quality wallets and other applications.
 

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