The Greenwich workshop continued producing armours into the reign of James I and Charles I, although the heyday of grand tournaments and exaggerated chivalric pageantry which characterized Elizabethan England had largely passed after the death of Henry Frederick, Prince of Wales . This transition can be seen in the styling of the post-Jacobean Greenwich armour; gilded decoration and etching is now absent, and the steel is no longer russeted, polished "white" or boldly colored in any other way but is uniformly a simple blue-gray shade.
A new technology called electric reactive armour (also termed electromagnetic reactive armour , or colloquially as electric armour ) is in development. This armour is made up of two or more conductive plates separated by an air gap or by an insulating material, creating a high-power capacitor .      In operation, a high-voltage power source charges the armour. When an incoming body penetrates the plates, it closes the circuit to discharge the capacitor, dumping a great deal of energy into the penetrator, which may vaporize it or even turn it into a plasma , significantly diffusing the attack. It is not public knowledge whether this is supposed to function against both kinetic energy penetrators and shaped charge jets, or only the latter. This technology has not yet been introduced on any known operational platform.