This backpack with drawstring design is very convenient to open and close, you can easily take the internal items and do not need to worry about losing items.You can also freely adjust the length of the shoulder strap, just tie a knot at the bottom of the rope. The main pocket is equipped with a small zipper hanging pocket, which can hold some small items or documents, etc. The front zipper pocket is designed to hold a cell phone, wallet, cup, umbrella or other small items.