Ironically the selection process for the container of all my equipment, the rucksack, wasn't really profound. However, within the one hour I spent at Transa Zurich, the Bach Day Dream 3 convinced me the most. It is robust and simple, although, with 2 kg, not exactly light weight. As I will be walking all day I also wanted a system that provides a channel for the hydration system and an integrated multi pouch for my chest. Again Bach offered the best solution (once it's installed at least).