For normal care, wipe the Aer Sling Bag 3 with a soft damp cloth when it picks up dust or marks. Avoid harsh cleaners unless the official care label says they are safe, because strong chemicals can affect fabric, coating, trims, or printed details.
Keep it away from sharp loose items, avoid overloading the zippers, and let the fabric dry fully before storing it after rain or heavy use. Empty the pockets from time to time so small items do not build up at the bottom. Good care keeps the product looking cleaner and also helps zippers, fabric panels, and compartments stay easier to use.