Using this Incase shoulder bag is super easy. Just unzip the main compartment and place your 15' laptop gently in the plush, fleece-lined area. You can use the quick access pockets to store things like your phone, keys, or pens for easy reach. The detachable shoulder strap can be adjusted to your preferred length and stowed away when not needed. When it comes to maintenance, wipe the bag with a damp cloth regularly to keep it clean. Avoid exposing it to sharp objects that could tear the fabric. If it gets wet, let it dry naturally. That's all you need to know to make the most of your bag!