Armour worn only by the biggest, baddest, spikiest and Dickest of BDSM Space Murderhobos. As such, these suits of armour are incredibly gaudy and are of high craftsmanship. Only the most esteemed and/or feared of Dark Eldar could wear one. That or be a Trueborn where you will automatically get access to the finest bits of the Dark Eldar armory, just because you weren't made in a vat. It doesn't have to include just the Archons you know.
Ghostplate Armour is worn by Dark Eldar and favoured amongst Archons who wish to combine substantial protection with great mobility. They are sort of like the lesser Kabalite Armour worn by Kabalite Warriors, but with more extra kinks up its sleeves.
The armour itself is fashioned from hardened resins containing pockets of lighter-than-air gas. Why this was done/designed so, we have no fucking idea. What, do the Archons huff fumes from these pockets to get high?
A propable answer would that these pockets of gas acts as shock absorbers. As a kinetic object hits the armour, force would be redistributed on said armour. Normal solid armour pieces like Flak Armour or Combat Armour would crack due to its rigidity as nothing would redistribute the kinetic force. However, the pockets of gas allows a 'cushion' to stretch and bend the armour piece, thereby redistributing a dangerous impact into something manageable, though that the gases are mentioned as being 'lighter than air' imply that they also help the thing weigh less (which is stupid since the amount of lift you get from that little gas, while not 0 is pretty damn close to 0).
It also incorporates mini-forcefield projectors for additional protection because fuck it, top-knot over here wants to make sure he won't get extra backstabbed. Que more Skaven-levels of shenanigans.
Still, despite this, Ghostplate Armour still pales in comparison to the absolute chad energy that is, the Incubus Warsuit.
|Armour of Warhammer 40,000|
|Imperials:||Flak Armour - Carapace Armour - Power Armour (Human Power Armour - Dragon Scale Armour |
Exo-Power Armour - Space Marine Power Armour - Artificer Armour - Aegis Armour - Auramite Armour)
Terminator Armour - Centurion Armour - Paragon Warsuit
|Chaos:||Flak Armour - Carapace Armour - Power Armour (Chaos Power Armour - Warp-Forged Armour) |
Chaos Terminator Armour - Fleshmetal Armour
|Asuryani:||Mesh Armour - Aspect Armour - Exarch Armour - Phoenix Armour - Rune Armour|
|Drukhari:||Kabalite Armour - Wychsuit - Incubus Warsuit - Ghostplate Armour|
|Harlequins:||Holo-Suit - Death's Legacy|
|Orks:||Studded Armour - Flak Armour - 'Eavy Armour - Mega Armour|
|Tau:||Kroot Armour - Recon Armour - Combat Armour - Battlesuit - Iridium Armour|
|Necrons:||Necrodermis - Sempiternal Weave|
|Tyranids:||Chitin - Carapace - Armoured Exoskeleton - Armoured Shell|