1. Carry-on backpack: The backpack measures 11.817.8716.92 (inches); the women's travel backpack approved by the airline can be carried on the flight, it saves you a lot of check-in fees, and is very suitable for placing under the airplane seat when traveling or on a business trip. 2. Large-capacity travel backpack: Two main pockets can be placed for women's personal items, clothes, etc.; keep your items organized and easier to find. Two laptop compartments, which can hold a 13-inch ipad and a 15.6-inch laptop. The casual backpack is also designed with a waterproof wet bag and a separate shoe compartment. The wet bag is made of high-density waterproof material to help you separate dry and wet items, and the separate shoe compartment can help you carry shoes better. 3. Anti-theft multifunctional backpack: With a trolley cover, the backpack can be slid onto the trolley for easy carrying. There is a hidden anti-theft pocket on the back to protect your valuables from theft. It is very suitable for daily backpacks, laptop backpacks, and backpacks for weekend leisure travel. 4. Laptop backpack USB interface: This USB backpack is equipped with an external built-in USB charger and a built-in charging cable, providing you with a more convenient way to charge your mobile phone, iPad and laptop. Please note that this backpack does not include a power bank, the USB charging port only provides convenient charging function. 5. Multifunctional backpack: This backpack can be unfolded 180 degrees, which is perfect for indoor/outdoor activities. It can also be used as a large laptop backpack, which is convenient for you to use during international travel, camping, short trips and overnight stays.