Dweller Armor

 is a durable armor with an Armor Rating of +2, effectively reducing all incoming damage amounts by 2 points. Considering the low damage amounts most monsters deal per single attack, this item is considered useful.

The item must be in your item bar for it to work. Wearing multiple suits of armors (of the same or different kind) will not stack the Armor rating, but only take in account the highest armor one.