This afternoon (well, European afternoon that is), the EU servers are down for the much anticipated patch that will hopefully fix the migration problems that so many are having. Just before the servers came down, I managed to get a few shots.
This robe is one from a quest, but the same model is available elsewhere, among others it is part of the Great Barrow light armour set. The inside of the sleeves will always remain green, no matter what colour you dye it. You don’t notice it while your arms are down, only when they are lifted.

Chest: Corunir’s Robe, crimson dye (quest)

Shoulders: Campaigner’s Shoulder Guards, crimson dye (crafted)

Hands: Elven Cotton Gloves, crimson dye (crafted)

Feet: Brushed Leather Boots, crimson dye (skirmish cosmetic)

Back: Cloak of the West-tower, crimson dye (Annúminas barter)