Thick HideClient records describe this reading. They do not confirm availability in gameplay.
While in Bear Form, Cat Form, Dire Bear Form, or Moonkin Form, you gain 1 additional base Armor per level and another 0.67 base Armor for each point of defense skill beyond five times your level. This amount can be further increased by multipliers from those forms.
While in Bear Form, Cat Form, Dire Bear Form, or Moonkin Form, you gain 2 additional base Armor per level and another 1.33 base Armor for each point of defense skill beyond five times your level. This amount can be further increased by multipliers from those forms.
While in Bear Form, Cat Form, Dire Bear Form, or Moonkin Form, you gain 3 additional base Armor per level and another 2.00 base Armor for each point of defense skill beyond five times your level. This amount can be further increased by multipliers from those forms.
Now properly implemented in code instead of script, fixing bugs with gear while shapeshifted
Sources: WoW Forever Beta Development Notes – Updated October 8
