Pretreat any stains on the leather by wiping then with a soft cloth dampened with water.
Select a leather conditioner. Avoid conditioners that contain heavy oil or animal fat, as they may leave a greasy residue.
Apply the leather conditioner to the corner of a soft cloth and wipe down the bag. Work in small areas and work the conditioner into the leather.
Wipe the bag with a dry, clean soft cloth to remove whatever conditioner that remains on the bag.
Roll an adhesive lint brush over the bag to remove lint and loose dirt particles.
Run a soft cloth under water and wring out the excess.
Pour a very small amount of mild dishwashing liquid onto the cloth and rub it onto the nylon material.
Wipe the bag with another moist cloth to rinse away the soap.
Dry the bag with a clean cloth.