Item Armour

Read the Armour number on the named equipped item. Use that displayed number for effects that say Item Armour. If the effect says total Item Armour on Equipped Armour Items, add the displayed Armour values on all qualifying equipped armour pieces. Do not add global Armour increases, passive bonuses, temporary buffs, or Armour gained from another source.

Use the value printed on the item

Item Armour is the exact Armour value shown on that item's tooltip. A helmet with 420 displayed Armour contributes 420 Item Armour to an effect that reads the Equipped Helmet.

Quality and local modifiers are already included

Quality and local modifiers that increase the item's own Armour change the displayed value, so they change Item Armour. Read the final tooltip number instead of adding the base value and local modifiers again.

Global and character modifiers are excluded

Passive skills, global increased Armour, buffs, and other effects that change the Armour granted to the character do not change Item Armour. They can change the character's total Armour while the item's printed value stays the same.

Named slots only read that slot

Item Armour on Equipped Helmet reads the helmet. Item Armour on Equipped Gloves reads the gloves. Item Armour on Equipped Body Armour reads the body armour. Armour on another slot does not satisfy that named-slot check.

Total Equipped Armour Items means a sum

Wording that asks for total Item Armour on Equipped Armour Items adds the printed Armour values on the equipped helmet, body armour, gloves, boots, and other qualifying armour equipment. A piece with only Evasion or Energy Shield contributes zero Item Armour unless an effect gives that item Armour.

Hybrid items contribute only their Armour value

An Armour and Evasion item has separate displayed Armour and Evasion values. Item Armour reads only Armour. Wording such as Item Armour and Evasion on Equipped Shield explicitly combines both named values.

Item Armour is not Armour mitigation

Armour is the defensive stat used against Hits, normally Physical Hits. Item Armour is a source value that another effect reads. The amount of Physical damage prevented still depends on the character's Armour and the size of the incoming Hit.

The character sheet exposes item defence totals

Since 0.4.0d, the character sheet displays the character's item Armour, item Evasion, and item Energy Shield totals. These totals help check effects that read all equipped armour pieces without replacing the individual item values.