butterfly backpack / lunch-backpack

My stylish hardbowl backpack integrates young modern design and important functions. First at all you can use it like an normal backpack. Secondly, the hardbowl of this backpack is a tray which you can put on your legs. It is usable as writing desk , lunch desk, as pad or table for labtops, books or something else. The hardbowl is usable in the collapsed position or in the expanded position. The advantage of the expanded position is the nearness between the tray and the upper part of the body. This important function offers an ergonomic sitting position and more comfort during the meal.