Using your Ortlieb Vario is a breeze. To convert it from a backpack to a pannier, simply use the Quick - Lock attachment system on one side. When using it as a backpack, adjust the ergonomic shoulder straps and chest strap for a comfortable fit. For items you need quick access to, put them in the zippered outer pocket. Use the roll closure to access other items inside the bag, and place your laptop in the padded compartment. Remember not to overload the bag beyond its 9 kg (19.8 lb) capacity. To maintain your bag, clean it regularly with a mild detergent and water. After cleaning, let it dry thoroughly in a well - ventilated area. Avoid exposing it to sharp objects to prevent tears.