Rest Bag / furniture

Rest Bag concept is a bag that can be use as a chair for tried travelers due to long trevelling.
It allows tired travelers going around many sites to sit down at any time and at any place, feel scenery, and spend resting time.
Rest Bag concept is when it is folded, it looks like a bag and when it is unfolded, it becomes a chair.
So in ordinary day, people can put things in it and carry around but when they get tired, they can unfold the bag and take a rest sitting for a short while at any place.