Armor bonus

From DDO wiki

An armor bonus is a bonus to Armor class from the armor that you are wearing. Armor bonuses do not stack.

Sources of Armor bonus:

• Feats
  • Adamantine Body +8 (warforged only)
  • Composite Plating +2 (warforged only)
  • Mithral Body +5 (warforged only)
• Items:
  • Armor +1-13 (bonus varies by armor type; magical enhancements contribute to the armor bonus by +1-5; note that armor may also limit the dexterity bonus to AC)
  • Docent +0-5 (docent, warforged only)
  • Armored Bracers +1-5
  • Black widow bracers +4 (obtained from Waterworks)
  • Delera's Vestment +2 (robe, obtained from Delera's Tomb)
  • Ironweave Robe +5 (robe, obtained from the Dragon chest)
  • Jeeka's Spangle +2 (trinket, from Stealthy repossession)
  • Ring of Trollish Regeneration +2 (ring, no longer in loot table)
• Spells:
  • Mage armor +4

Other common bonuses to your armor class are shield bonus, dodge bonus, deflection bonus, dexterity bonus, natural armor bonus, and miscellaneous bonus.