Using the Thule Chasm duffel bag is super easy. For short trips or long adventures, just toss it in your trunk or roof box. When you want to carry it as a backpack, simply pull out the shoulder straps. To pack, open the wide - mouth opening and place your gear inside. Use the internal mesh pockets to keep small items like keys and chargers organized. When not using the backpack feature, tuck the shoulder straps away. As for maintenance, wipe it clean with a damp cloth if it gets dirty. Avoid using harsh chemicals. Store it in a dry place to keep it in good condition.