1.- backpacks don't extend inventory on equip, you need to close and open the inventory for this to work.
2.- backpacks with item on them don't show the lock item and show the curse (it shouldn't), backpack also becomes an epic item for some reason???
3.- backpacks give you armor (they shouldn't)
4.- taking damage removes and voids the backpack (???)
5.- backpacks cannot be dyed