These crossbody bags are super easy to use. Just put on the strap and you're ready to go! You can carry your essentials like phone, wallet, and keys inside. When it comes to maintenance, use a soft, dry cloth to clean the surface regularly. Avoid exposing the bags to direct sunlight for long periods as it might fade the color. Also, keep them away from sharp objects to prevent scratches. Remember, because of the chemicals in the materials, don't let small children chew on the bags. If you want to store them, put them in a cool, dry place and stuff them with tissue paper to keep their shape.