Aspect Armour is a more advanced varient of Mesh Armour
Construction
Aspect Armour is manufactured in an almost identical fashion to mesh armour, save for a few differences that change the properties of the amour considerably. Designed and constructed exclusively by the Eldar, Apect Armour utilises their highly advances knowledge of psychic engineering. The Eldar us psychic energy in much the same way the Imperium uses plasma and electrical energy, both as a power source and for weaponry. Aspect Armour is made from psycho-sensitive material which reacts to the thoughts of the user and pre-empts all ther movements, reshaping so that it remains a perfect fit regardless of the way in which the user contorts their body.
In terms of protection, Aspect Armour stiffens on impact in the exact same fashion as Mesh Armour, to distribute the energy of the blow, though it will often carry further ablative plates on top, as the Dark Reapers and Fire Dragons armour does, making it considerably more effective than Mesh Armour.
Effects and Distribution
Aspect Armour is employed exclusively by Craftworld Eldar, altough it is perfectly possible in theory for all Eldar groups to produce it. It is heavier and in many way harder to use than Mesh Armour because of its psycho-sensitive design, it is also harder to produce, and so relatively few individuals in any one Eldar army will were it. For that reason, only those warriors who have dedicated themselves to one of the Aspect Paths.