In fact, you say the problem involved is maintenance of the bag, when, usually with the attention of waterproof, anti friction, easy for you to share care knowledge,
1. do not use chemical solvents. Alcohol or regular leather skin care is damaging to it, damaging the natural sheen of the surface of the protein and causing discoloration.
2. don't polish with polish or wax. Can only use URAD or other professional leather care agent gently wipe the dirt into the pores of the sponge away, containing lanolin and palm sap composition provides more protection.