Capacity34 LTDimensions54 x 33 x 23 cmFunctionalsDouble telescopic bar with Crossover System to “save” the shoulder straps. 3 possible uses: 1) Backpack without the trolley cart; 2) Backpack with wheels; 3) Hand Luggage. 4 wheels with 360° rotation system. Other features Removable karabiner. Reinforced bottom. Warranty2 YEARSBackPadded with outer fabric.ShoulderPadding with outer fabric. CROSS-OVER SYSTEM: The shoulder straps are automatically lifted-up when it is used as wheeled backpack.PocketsFront pocket.FabricPolyester fabric.