Backpacks provide extra inventory space for you to store your items accessed with /backpack [#] or /bp [#]
There are Towny backpacks shared across the Resource, Dungeons, Maestrea and Elyssia servers.
Backpacks WILL drop on death, unlike vaults.
Bigger backpacks can be unlocked as you rank up
Backpack 1 is available to all players. You can unlock two extra backpacks (/bp 2 and /bp3 respectively) with /bpgrade.
Vaults are an extra inventory that can be accessed with /vault or /pv
Towny vaults are shared across the Resource, Dungeons, Maestrea and Elyssia servers.
Vaults do NOT drop on death
A full size vault is 54 slots.
How many slots and vaults a player can access is based on rank.
Vaults are unlocked via donor ranks. For more info see /donor