A packaging system includes an inner box and an outer box. The inner box is adapted to receive items to be transported and has a base, a side wall and a lid. The outer box is adapted to house the inner box and has a base, a side wall and a lid. The base and the lid of the outer box are adapted to form a flat pack that houses a folded-down form of the inner box and of the side wall of the outer box for transport within the flat pack. The folded-down form of the inner box can be removed from the flat pack and assembled to form the inner box. The folded down form of the side wall of the outer box can be removed from the flat pack and assembled together with the base and the lid of the outer box to form the outer box.