Path of Exile on Twitter: "We've just released the Invisible Buff Effect! This microtransaction works just like the Vanishing Dye for your armour, but removes the visual effects of many buffs instead.
Bug Reports - Arctic Armor and Mana Regen: Something doesn't add up - Forum - Path of Exile
Arctic Armour - Path of Exile Wiki
Arctic Armour - Path of Exile Wiki
Anomalous Arctic Armour is likely one of the best defensive mechanics in the game : r/pathofexile