Boeing has unveiled a new overhead baggage storage system which can hold up to 50% more luggage.

The new “Space Bins,” as Boeing is calling them, will be fitted to in service 737 aircraft before the end of this year with Alaska and Delta Air being the first carriers to place orders.

By making the overhead stores deeper and sacrificing 5cm of headroom, Boeing has found a way of standing average cabin-size suitcase up side by side, meaning six cases can be stored together.

The new design also does away with the current opening and closing door and hinge mechanism, which has also created more internal space for passenger bags.