Maximum dexterity bonus

Heavier armors limit mobility, reducing the wearer’s ability to dodge blows. Maximum dexterity bonus is the maximum amount of additional Armor Class you can gain from your Dexterity bonus while wearing an item. Maximum dexterity bonus also caps your maximum dodge bonus (up to the hard limit of 25%).

For example, a character with 14 Dexterity has a Dexterity modifier of +2. While unarmored, that character gains +2 AC from Dexterity and her maximum possible dodge bonus is 25%. If she wears armor with a maximum dexterity bonus of +1 (such as Full plate) she would only gain +1 AC from Dexterity and her dodge chance would be capped at 1%.

Your encumbrance level may also impose a maximum dexterity bonus. Smaller shields do not have a maximum dexterity bonus score, but tower shields do.

Maximum dexterity bonus of armor, shield, and encumbrance does not stack. The lowest value applies.

Note that any effects that increase your maximum Dodge bonus will not affect your Dodge cap, if your Max Dex Bonus is capped from an Armor or Tower shield.
 * For example a character wearing an armor with Max Dex Bonus=2 and a Greataxe in his hands will have a maximum Dodge bonus of 2%. If he spends points in the Ninja Spy's - Agility enhancement, he will still remain with a Dodge Cap of 2%.

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Armor
See armor overview in the Armor by Proficiency article. Mithral armors have a Maximum Dexterity Bonus that is 2 higher than normal. Darkleaf is 1 higher than normal. Enhancements that increase maximum Dexterity Bonus are available to Fighters, Artificers and Dwarves. Armor with augment slots can have its bonus increased using appropriate augments. can improve your maximum bonus as well. Armored Agility and Armor Mastery do not stack, for example a with a Sapphire of Armored Agility +2 Augment will only provide a +4 Max Dex Bonus.


 * Various named armors have a much higher Armor Dex Bonus, for example the Platemail of the Celestial Sage with a score of 17.

Shields
Tower shields have a maximum dexterity bonus of +2. Mithral improves the bonus by 2. Enhancements that increase the Maximum Dexterity Bonus are available to Fighter Stalwart Defenders and Paladin Sacred Defenders. Shields other than tower shields do not have a Maximum Dexterity Bonus.

Encumbrance

 * Light (unaffected Maximum Dexterity Bonus)
 * Medium 3
 * Heavy 1

Guild Buffs

 * Fencing Master: +2 to armor

Feats

 * Past Life: Student of the Sword: +1 to armor and tower shields
 * Mobility: +2 to armor and tower shields

Items

 * Sapphire of Armored Agility: [+1/+2] Enhancement bonus to armor
 * : [+2/+3/+4] Enhancement bonus to armor
 * : +2 Quality bonus to armor
 * Items with Nimbleness enchantment: [+2/+4/+6] to armor
 * Items that grant the Mobility feat: +2 to armor and tower shields

Enhancements
Racial
 * Dwarven Armor Mastery: [+1/+2/+3] to armor
 * Dwarven Shield Mastery: [+1/+2/+3] to tower shield
 * Human Fighting Style: Shield Mastery: [+1/+2/+3] to tower shield
 * PDK Fighting Style: Shield Mastery: [+1/+2/+3] to tower shield
 * Halfling Nimble Reaction: [+1/+2/+3] to armor
 * Deep Gnome Nimble Reaction: [+1/+2/+3] to armor
 * Gnome Nimble Reaction: [+1/+2/+3] to armor
 * Half-Elf Dilettante Special Ability: Armor Mastery: +2 to armor
 * Warforged Mithral Fluidity: [+2/+4/+6] to Mithral Body

Class
 * Assassin Light Armor Mastery: [+2/+4/+6] to light armor
 * Kensei Athletic Mastery: [+1/+2/+3] to armor (works with all armor types)
 * Constructive Conduit: [+2] to medium or heavy armor or Adamantine Body
 * Mass Unbreakable Forcefield: [+3] to medium or heavy armor or Adamantine Body
 * Renegade Mastermaker Armor Mastery: [+1/+2/+3] to armor
 * Sacred Armor Mastery: [+1/+2/+3] to armor
 * Sacred Shield Mastery: [+1/+2/+3] to tower shield
 * Stalwart Defensive Mastery: [+1/+2/+3] to armor
 * Stalwart Shield Mastery: [+1/+2/+3] to tower shield
 * Swashbuckler Confidence: +1 to armor per core ability.
 * Swashbuckler Second Skin: [+2/+4/+6] while swashbuckling
 * Tempest Improved Mobility: [+1/+2/+3] to light armor
 * Tempest Elaborate Parry: +Dexterity bonus to light armor, for [6/12/18] seconds
 * Thief Acrobat Shadow Dodge: [+1/+2/+3] to light armor
 * Vanguard Armor Mastery: [+1/+2/+3] to armor

Other

 * Lithe: up to +6 to light armor