[header] How to wash a longchamp bag [title] Apply longchamp colorless cream to the leather areas. [step] Use longchamp's colorless cream or another colorless cream-based leather cleansing product on all leather portions of the bag. [substeps] Use a soft brush to lightly scrub the leather portions of the bag with the cream. 
After cleaning the leather, wipe any excess cream with a clean, soft cloth. Use small, circular motions to buff the bag clean.