The Minimeis Hiking Backpack G4 is ingeniously designed to fit onto the G4 child carrier. You can easily place your child on your shoulders with the carrier; simply tuck away the backpack straps and attach it to the G4 using two hooks. It will be very easy for you to unhook one side to access the contents of the backpack without needing to remove it completely. When your child wants to walk, you can simply carry the Backpack G4 and store the child carrier. You will finally be able to enjoy the freedom of the past!