Remove any cushions or pillows from the soft leather chair. Vacuum the chair and cushions thoroughly with a soft brush attachment.
Apply leather cleaner to a soft, dry cloth until it's thoroughly saturated. Wipe the entire surface of the chair and cushions, working on one small area at a time. Change cloths and reapply the leather cleaner as needed,
Apply leather conditioner to a soft, dry cloth according to the product instructions. Wipe a thin layer of leather conditioner over the chair and cushions. Remove any excess with a fresh cloth.