Travel Select Crossing 3 Piece Hardshell Lightweight Luggage Set Hardshell suitcases protect our belongings with ABS that gives the shell greater rigidity so that it will not permanently deform when under pressure but instead pop back up into its original shape. ABS material is lightweight and durable. Convenient removable add-a-bag straps for carrying additional bags Push button multiple-stage retractable aluminum handle system Packing compartment features a center pocket and fully lined imprinted interior with a divider