Due to increasing travelers, airlines require rigorous restrictions on carry-on size to prevent baggage traffics and shortages of overhead bin space. Deep inside the overhead bin lies a substantial unoccupied space where people squeeze in their shopping bags and jackets. As the cylindrical fuselage of an airplane is always round, it can cause lots of dead space. Arc's curved corner replicates the inner curve of the overhead bin. Arc is a concept that airlines can adopt to utilize the overhead bin space more efficiently.