Another factor may be that more people are trying to overpack their carry-on bags to avoid checked-baggage fees, though the airlines strongly dispute this.

Another factor may be that more people are trying to overpack their carry-on bags to avoid checked baggage fees, though the airlines strongly dispute this.

Unit load device. Any type of freight container, aircraft container, aircraft pallet with a net or aircraft pallet with a net over an igloo, an overpack is not included in this definition.