Using this Fiji Rugby backpack is easy. Just unzip the top zipper with the 2 sliders and start putting your things inside. Put your laptop in the separate 15” laptop pocket. Use the front zippered pocket for quick - access items and the hidden back pocket for valuables. When carrying, adjust the padded ergonomic straps using the plastic regulators for a comfortable fit. As for maintenance, spot - clean the bag with a mild detergent and a soft cloth if it gets dirty. Don't overload the bag beyond its 44lbs (20kg) weight limit to avoid damage. Keep it in a dry place when not in use to maintain the water - resistant property.