Ghostweave Gloves

Ghostweave Gloves are a pair of gloves that give a bonus to intellect and mana regeneration.

Source
Ghostweave Gloves are crafted by tailors with a skill level of 270.

The pattern drops off Lingering Highbornes in Azshara and Unseen Servants in Eastern Plaguelands. However, the recipe is now also available from tailoring trainers.