Using this backpack is easy. Just unzip the main compartment and put your things inside. You can keep your phone in the cell - phone pocket and other small items in the interior zipper pocket. For the exterior, the silt pocket is great for quick - access items. When carrying it, the physiological curve back design will make it more comfortable on your back. To keep it in good condition, avoid sharp objects that could tear the polyester material. If it gets dirty, you can gently wipe it with a damp cloth. Don't machine - wash it as it might damage the clover pattern and the overall structure. Store it in a dry place when not in use.