A guide to acquiring the armor skins within the GW2 Wardrobe system. You can find the weapon equivalent here.
Gallery of the new Rampart, Strider and Incarnate armor skins added to the gemstore with April 15 update. Also included are some previews of the unreleased Lawless gloves, helmet and boots.
Gallery of the Flamekissed, Flamewalker and Flamewrath armor skins in the GW2 gemstore sold for 800 gems each. Included also are the Stag and Grenth helms which can be obtained during Wintersday (method unknown)
A gallery of the new Trickster, Viper and Phalanx armor skins introduced in the gemstore with the Tower of Nightmares update. Each armor set costs 800 gems.
Update: July 30, 2013. They now available in the gemstore! A gallery of the Phoenix, Magitech and Barham armor you can find with the latest update. They can be purchased in the gemstore for 800 gems each.