Traveler's Choice Rome 3-Piece Hardshell Spinner/Rolling Luggage Set (Silver) 28" Upright: 28" x 21.5" x 12", 13.5 pounds 24" Upright: 24" x 17.5" x 11", 12.5 pounds 20" Rolling Upright: 20" x 15" x 9", 9.5 pounds Lightweight durable Polycarbonate ABS shell material for strength and providing maximum impact resistance The Polycarbonate allows the shell to absorb impact by 'flexing' when under heavy stress