Backpack and armour.
Your character has a backpack in which up to nine items at a time can be stored. Also, there are six different body parts which can be protected by armour: head, neck, torso, shield arm, fingers and legs. Below the adventure screen, you can see the contents of your backpack respectively the armour you are wearing. By selecting "Armour" or "Backpack" either in the menu, by selecting the corresponding hotkey (key-based) or by touching upon the toggle button (touch-based), you can switch between your backpack and your armour window.