In general, magic armor protects the wearer to a greater extent than nonmagical armor. Magic armor bonuses are enhancement bonuses, never rise above +5, and stack with regular armor bonuses (and with shield and magic shield enhancement bonuses). All magic armor is also masterwork armor, reducing armor check penalties by 1. A suit of armor or a shield may be made of an unusual material. Roll d%: 01–95 indicates that the item is of a standard sort, and 96–100 indicates that it is made of a special material.