Using this backpack is a breeze. First, open the main compartments to place your 17 - inch MacBook Pro or iPad. The separate compartments keep your devices organized. You can quickly access your iPhone from the fleece - lined pocket on the side. Adjust the shoulder straps to your comfort level before wearing. When it comes to maintenance, use a soft, damp cloth to wipe off any dirt. Avoid using harsh chemicals as they may damage the durable polyester and triple - coated panels. Don't overstuff the bag to maintain its shape and the protection of the padding. Keep it in a dry place when not in use to prevent any mold or mildew growth.