the standard trolley, which has a detachable ruck sack design which can be used as a shopping trolley or as a substantial piece of luggage for travelling as it can hold up to 20 kilos. At nearly 18cm, the wheels are larger than average design for maximum manoeuvrability and use over all terrains. The frame folds flat when not in use for easy stowing in a car, or on a plane or train. The three outer pockets are thermal lined for maximum flexibility.