Backpack
From Fallen Sword Wiki
The Backpack is where each player stores his/her items. Each player starts with 3 Backpack spaces. These spaces are called 'slots'. There are 12 slots to one page of items, and each player can upgrade the number of Backpack Slots via the Upgrades page.
On Fallen Sword Wiki, we have templates to help other players visualize your profile page by having you list the items in your backpack.