Using this backpack is a breeze. Simply unzip the top closure to access your belongings inside. You can keep small items like keys or cards in the inside zip pocket, and use the magnetic snap front pocket for easy - to - reach things. The side pockets are great for holding water bottles or umbrellas. To convert it into a sling bag, just zip the two adjustable shoulder straps together. When it comes to maintenance, spot clean the soft canvas with a mild detergent and a damp cloth. Avoid using harsh chemicals as they may damage the fabric. Don't overstuff the backpack to prevent it from losing its shape. Keep it in a dry place when not in use to avoid mildew.