Wipe down the leather with a cloth dampened with leather cleaner.
Fill a spray bottle with 1 part water, 1 part part rubbing alcohol and a drop of dishwashing soap. Spray the leather.
Sand lightly and evenly with 80-grit sandpaper while the leather is still wet. Sand until the "tooth" of the leather is consistently raised, or the leather has a rough, fuzzy look. Use a nail file to get into hard-to-reach crevices.
Spray the leather again, then continue sanding with 220-grit sandpaper. The higher grit will soften and even out the previous sanding job.
Rewet the leather one more time and finish softening the leather by sanding with 320-grit sandpaper.
Brush the leather with a soft brush to comb out the leather tooth and to get rid of any loose matter left from sanding.
Restore any coloration lost by sanding or change the color completely with leather dye. Apply leather dye with a paintbrush.