【Flight Cabin Bag Backpack】The travel backpack's dimensions are approximate, with a capacity of 20L. Fully meets Ryanair's latest requirements for free carry-on baggage. The travel backpack is compatible with the baggage policy of most European airlines, including but not limited to Vueling, Flybe, TUI, Lufthansa, Jet2, Qantas, Etihad, Emirates, Norwegian, Delta, and Iberia. 【Practical Design】The backpack features an anti-theft pocket on the back, where you can safely store valuables such as cash and passports. The side of the backpack is designed with a cable hole (please note that the data cable and power bank are not included). This design enhances security and better protects your personal belongings during travel. 【Backpacks for Airplane Travel】The Ryanair cabin bag backpack is designed with a strap on the back that can be attached to the luggage handle for quick travel. At the same time, the backpack can open 180 degrees like a suitcase, making it easy for you to organize your luggage and quickly pass through airport security checks. 【Thoughtful Design】The 20L travel backpack provides you with enough space to store your luggage. Two large compartments, two internal mesh pockets, a 13.3-inch laptop compartment, a wet bag, and multiple small compartments. The backpack's front zipper pocket and anti-theft pocket offer enough compartments and space to classify and store your luggage, making it easy for you to quickly find your items. 【Multifunctional Airplane Backpack】Our travel backpack is made of durable fabric. The buckles on both sides of the backpack make it more stable, and the comfortable shoulder straps and breathable layer on the back make this backpack more comfortable.