Sky Mantle is an unused armor item which gives +1DF and supposedly would deflect 50% of the damage made by Elec and Holy attacks, but this element is never set on any bullets, similarly to Mouse Token. It can be equipped by any party member and cannot be sold.
When equipped, this item does not show any flavor text, similarly to Tension Bow.
- Seam talks about an item called the "Shadow Mantle" that would help the party in the future. It is unknown what relation the Sky Mantle has towards the Shadow Mantle, if any at all.