External details of the backpack What's on the front? Double zipper design on the main pocket, two independent zipper pockets, Carry all your essentials. Hidden anti-theft zipper pocket Put valuables in the hidden zipper bags to avoid theft. Open side pockets There are open pockets on both sides of the backpack, you can put an umbrella, water bottle, paper towels, and get it conveniently Adjustable shoulder strap The length of the shoulder strap can be adjusted, so don't worry about whether it can fit. The short colored shoulder straps can be removed. Internal details Large capacity main bagOne zipper pocket and one open pocketA4 magazines, clothes, books, umbrella, iPad, etc. can be put in the backpack