Antelope, buckskin, lambskin, sheepskin, and cowhide are the hides most commonly used to make leather jackets. As soon as the skin is removed from the animal at the meat processing plant, it is refrigerated, salted, or packed in barrels of brine. It is then sent to the tannery where the skins undergo a series of processes designed to preserve and soften the hides. The work performed at the tannery is of utmost importance to insure that the resulting garment[garment?:garment paper cutter machine] is of high quality. Sewing materials such as thread, lining, seam tape, buttons , snaps, and zippers are generally purchased from outside vendors and stored in the garment factory.