LOVEVOOK Travel Backpack 40L/45L Expandable Water-Resistant 。✈ 40L large capacity and 4 main compartments, can store a lot of things, including 5-8 pieces of clothing, shoes, books, and many other items. The separate laptop compartment is padded with EVA foam to provide the best protection for your 17\" laptop and 12.9\" iPad. The front compartment has many pockets to keep your belongings organized. ✈The size of the carry on backpack is 18*14*8inch. Meets the maximum size allowed by most International Air Transport Association (IATA) flights, and can be placed in the overhead luggage compartment and under seat luggage for airlines, can be freely opened 90-180 degrees easily and quickly at the airport security check. ✈waterproof backpack equipped with additional 2 storage pocket . can also put your toiletries and wet clothes inside the dry and wet separation bag made of high-density waterproof material to keep your travel organized. uses strong explosion-proof metal double-way zippers and upgraded reinforced stitching to make it last longer. This large travel backpack has handles on the top and one side. It can be easily used in daily life. Multifunctional Backpack