Although I daily up to 15 kg so carrying around, I did not get back or shoulder pain. The design of the truss beam distributes the load ideal. Every day, the material loaded by my extremely thick notebook (up to 6.5 cm), a large number of school supplies, a 1 liter PET bottle and a Jausenbox, the apparent load limits, but the robustness of surprised me again and again positive. Even during a walking day the backpack was already proven. For years Jack Wolfskin products I use and its predecessor, used by me could behaubten over 5 school years. I had to give up after the partition between the compartments began to dissolve due to a damaged tip with scissors.
