Armor Master (Ex)

The gadget spec URL could not be found

You don't take an armor check penalty or incur a arcane spell failure chance when wearing light armor or using a shield (including a tower shield). In addition, the maximum Dexterity bonus of light armor doesn't apply to you. You can select this ability up to three times. The second time, it also applies to medium armor. The third time, it also applies to heavy armor.