Capacity34 LTDimensions51 x 37 x 27 cmFunctionals3 POSSIBLE USES: 1) Use trolley with shoulder straps to total disappearance in the backrest. 2) Use backpack without releasing the cart. 3) Use backpack when fully unhooked from cart with new release system.Warranty2 YEARSBackPreformed Ergosystem with integrated bottom.ShoulderPadding with outer fabric and breathable mesh. CROSSOVER SYSTEM: Hooks lift the shoulder straps when used as a trolley.PocketsFront pocket. Inner pocket water bottle holder.FabricResined Polyester fabric.