Using this cooler bag is a breeze. First, open the large compartment to put in your wet or dry goods, like snacks or a change of clothes. Then, if you have water bottles, just slide them into the mesh side sleeves. The external zip pocket is great for quick - access items like keys or your phone. When you're on the move, you can choose to carry it by the top handles for short trips or wear it as a backpack for longer walks. As for maintenance, wipe it down with a damp cloth regularly to keep it clean. Avoid using harsh chemicals as they may damage the REPREVE™ recycled poly fabric. If it gets wet, let it dry thoroughly before storing it to prevent mold.