Using this Attack On Titan themed backpack is easy. Just open the main compartment to put in your books, clothes or other essentials. You can also use the side pockets for small items like water bottles or keys. When it comes to cleaning, simply wipe it with a damp cloth for light stains. For heavier dirt, you can hand - wash it in cold water with mild detergent. Avoid using bleach as it may damage the fabric. Make sure to dry it in a well - ventilated area, not in direct sunlight. Also, don't overstuff the backpack to keep its shape. With proper care, this backpack will serve you well for a long time.