Airline Certified Travel BackpackThe dimension of this travel bag is 40*31*14cm / 15.7*12.2*5.5'' and weighs only 2 lbs. This luggage backpack meets the maximum size requirements for most IATA flights, and its compact design can be placed directly under overhead luggage racks and seats to help you save extra money. Plus, it opens 180° like a suitcase, allowing you to move quickly through airport security. Multi-Pocket Backpack This waterproof backpack has multiple compartments, spacious enough for your 2-3 days traveling needs. One large capacity main pocket can hold about 5-6 pieces of thin tops or pants, suitable for short-term trips. The front of the backpack has multiple multifunctional pockets, and on the side are two adjustable elasticized side pockets to put down your water bottle and umbrella. A practical computer compartment can easily fit a 15.6'' laptop for your work needs. Multifunctional BackpackThis casual backpack is compact and lar