Hide Processing Hides arrive ino the plant in the "blue" (hair & flesh removed). OKL trims the hides into desired sections needed (Back, Bend, Side, etc) and then load hides into large drums, adding necessary dyes and oils. Drums roll continuously, processing color and finish for each load of hides based on project color or tannage. Hides are then stretched to go into drying house. Once dryed, hides are separated, measured and then transfered to Auburn Leather for cutting into leather laces or other desired products or sold by the leather section.