The backpack includes a main bag, a front bag, a front insert bag and two-sided mesh bags. The main bag with large opening is designed to facilitate taking and placing articles, and the main bag contains a separation layer for easy storage; Front zipper bag, two-way zipper opening, easy to use, with file compartment and a small transparent compartment. Small notebooks, change, certificates, mobile phones, charging treasures and other items can be placed in the front pocket. Comfortable and wide straps can reduce the pressure on the shoulders and prevent the deformation of the load. The thickened back pad can increase the comfort and breathability of the back, which is a backpack that combines leisure, fashion and comfort. There are reflective strips in the front bag and the mesh bags on both sides of the bag, which will have obvious reflective effect under the illumination of night light and play a protective role. The strap is matched with a height-adjustable buckle chest strap to prevent the strap from slipping. Suitable for outing, shopping, traveling, going out, etc. It is recommended to wash by hand, hang in the shade, iron at low temperature, do not rinse, do not wring out (can be squeezed locally).