Backpacks are equip-able items that give the player different benefits. The sprite is displayed on the back of the player.
“The Survival System is an equipable item that's worn in the back armor slot. It allows breathing...Survival System
“The Eye Cape is an item that can be found in Eye Chests.it allows you to "see" farther when you...Eye Cape
“Contents[show] Glitch Wizard Merchants wear this set, but it can also be obtained by players. If...Wizard Vanity Set
“A Large battery that is equipped on the "Backpack" Slot. Provides nothing for the player and is...AA Battery Pack