Carry on Backpack Airline Approved Travel Backpack with Packing Cubes

🧿EXPANDABLE & ROOMY SPACE: Regular sizes are 18*13*5.5 inches; after extended sizes are 18*13*7.5 inches, Light Weight 1.028 Kg (2.26 lb). This large-capacity Travel backpack with an expansion function has a capacity of 45L. Just unzip the expansion zipper to instantly obtain additional storage space, and easily accommodate 3-5 days of travel equipment. Good for business trips, weekend trips, and other outdoor activities 🧿TSA CERTIFIED DESIGN：The luggage backpack adopts a TSA design, which can freely expanded 90-180 degrees, helping you quickly pass airport security while keeping your items in order. This carry on backpack meets the personal carry-on item standards of airlines such as Southwest, Spirit, JetBlue, and Frontier Airlines. It can be placed on the overhead luggage rack and under the seat, so that you can avoid the trouble of checking luggage 🧿ADDITIONAL 3 PACKING CUBES: the carry on backpack has 3 Packing Cubes of different sizes for you to sort different types of clothing, Large cube for jackets, sweaters, trousers, Medium cube for shirts, shorts, blouses, Small water resistant cube are available For you to put the toiletries you need for travel, make your various travel necessities Neat and Orderly, bring you more convenience during the journey