Using this Celtic FC backpack is a breeze. Just unzip the large double - zipped opening on the main compartment to put in or take out your stuff. You can use the front zipped pocket for smaller items like keys or cards. Adjust the shoulder straps to your comfort level before wearing it. When it comes to maintenance, clean it with a damp cloth if it gets dirty. Avoid using harsh chemicals as they might damage the design. Store it in a dry place when not in use. And always be careful not to overstuff it to prevent any damage to the zippers or straps.