This is a great backpack for a quick trip. It fits under the seat depending on the airline and aircraft you are flying on. Used one time. Measurements : 14x18x8 “The Travel backpack with many compartments, holds about 40L. The main pocket can hold your travel goods,fit 5-8pcs clothes. Front compartment The front compartment with various pockets can be used to store notebooks, pens, earphones, and other small items, for quick pick out. The Travel Bag has a built-in laptop compartment that fits most 15-inch laptops and is situated close to your back.”