Using these backpacks is super easy. You can carry them on your back for everyday use, like going to school, work, or on a trip. When you're done using them, just empty out the contents. To keep them in good shape, avoid getting them wet too often. If they get dirty, you can gently wipe them with a damp cloth. Be careful not to put too heavy items in them to prevent any damage to the materials. And remember, because of the chemicals they contain as per California Proposition 65, don't let children chew on or play roughly with these backpacks.