Using your Mini MLC 30L Black Hole Travel Backpack is a breeze. For normal backpack use, just pull out the shoulder straps and adjust them to your comfort. The hip belt can be used around your hips for extra support during long walks or converted into an additional shoulder strap. If you prefer to use it as a duffel or briefcase, tuck all the straps away and grab it by the handles. When packing, make sure not to overstuff it to keep it within the carry - on size limits. To maintain your backpack, wipe it down with a damp cloth regularly. Avoid using harsh chemicals as they may damage the recycled materials. Store it in a cool, dry place when not in use.