Using these Tatonka compression sacks is easy. First, put your items inside the sack. Then, use the adjustable compression straps to squeeze out the extra air and make the sack more compact. You can use the side - release buckles to secure the straps. The cord lock on the string helps keep the top of the sack closed. When it comes to maintenance, just spot - clean it with a mild detergent if it gets dirty. Avoid using harsh chemicals. Also, don't over - compress the sack as it may damage the straps or the material. Store it in a cool, dry place when not in use.