Armor

Physical defence, or commonly referred to as Armor, is a secondary stat that reduces the damage dealt by physical attacks and skills.

When found on your equipment, Armor refers to a reduction in physical damage applied against all elements. Unlike Magic Armor, there are no individual elemental resistances for physical damage specifically.

Refining can increase your Armor stat, as well as most Warrior based equipment. Armor is hard-capped to a maximum of 50% damage reduction from physical attacks (about 200 Armor). You can exceed 50% damage reduction (through certain skills such as Endurance), but you'll exponentially need more Armor to gain a single % beyond 50.