-Main zipper hidden. Main compartment zipper is hidden in the bag, no one could see it and open it when you pack it. Also, there are no zippers outside of the backpack.
– Built-in plastic sheet. Three plastic sheets are added around the middle layer of the bag, scratch-resistant, safer for your item in the bag.
USB 2.0 charging port & solar panel design
-Installed USB cable. Use it to connect your power bank, then connect your smartphone to the USB port using the original USB cable, you can charge your smartphone conveniently.
-Solar panel design. Solar panel charger. Use the solar panel connector to connect to the USB port when you go out on a sunny day.