Pull-up leather is aniline dyed in the drum to create deep, vibrant colors. It is finished with a combination of transparent waxes and oils, which gives the leather a very soft hand, or feel. When this leather is stretched or pulled, the color migrates and becomes lighter in the pulled areas. Hence, the name “pull-up” refers to this change in color. Drastic variations in light and dark areas increase as the leather is handled and stretched against the grain. The “pull-up” becomes more evident as the leather is stretched tightly around furniture frames and other materials. As a pure aniline leather, marks, scratches, and signs of wear will show and a rich patina, or shine, will increase over time.
Pull-up leather has oils mixed in with the paraffin waxes and is applied to the surface of the hide with a roller. Then the hides are vacuumed dried. As a result, the leather has more sheen. When the leather is stretched or pulled, the oils on the surface cause the color migration and lighter areas to appear.