Skybuilders' Cloth

Skybuilders' Cloth is miscellany used in the Ishgardian Restoration.

Source
Skybuilders' Cloth can be crafted by weavers as a level 40 recipe with the following materials:
 * x4
 * x4
 * x2
 * x4
 * x2

Uses
Skybuilders' Cloth is exchanged for in custom deliveries to Potkin in The Firmament.