Glamered

Glamered is a quality that can be applied to masterwork armor, granting the wearer the ability to hide his or her armor from sight. If the wearer gives a predetermined command, the armor transmutes itself into outwardly normal clothing. It retains all other properties, including weight, hardness, and so on. Only true seeing or similar magics will reveal the armor's true nature.

Creation
The creator must cast disguise self on the armor to grant the glamered property.