Glamered

Glamered armor was magically enhanced to transform itself upon command to take the form of ordinary clothing.

Creation
One who would craft glamered armor had to know the spell disguise self.

Activation
Glamered armor appeared normally as regular armor. Upon the wearer's command, glamered armor changed form, taking the shape of a set of ordinary clothing. Its other physical properties, however, such as mass and level of protection, remained the same. When disguised, glamered armor could only be revealed as such by a true seeing spell or similar magic.

Notable Users
Mirt the Moneylender owned a mithral shirt that was glamered.