shapl NEW Dr.Nah Backpack is the work of Professor Nagan of Hongik University Graduate School, and has not only a refined design but also a smart function. As there are USB terminals inside and outside of the Shuffle NEW Nah backpack, you can charge your cell phone with cable without having to pull the secondary battery out of the bag. It also has the advantage of using a smartphone app to search for lost and stolen alarms and lost points. In addition, the overall water supply and zip part of the life using nylon oxford material is more focused on waterproofing function with lifestyle zip, which is aesthetically valuable due to its excellent waterproofing effect and sleek design. It is also made of wide width and has a large storage space that is practical and open 180°, making it more convenient and 100percent space-useable. Moreover, the 17-inch laptop storage space reduces the impact of space between a laptop and a pocket bag on the bag, allowing safe storage of the laptop.