Compact packaging and everything can be put away neatly. I came across that on an autumn hike. I haven't used all the kippas yet, but won't the time for them come at some point? For some reason, I can't catch the lid of the mug when packing. Fortunately, the plates form such a large space that the mug can fit inside open and the lids can be packed closed. A bag would be a plus, of course. Thus, slightly dirty dishes would not dirty the backpack from the inside when you pack the dishes in the backpack.