Darkrune Gauntlets are plate hand armor with a large amount of Shadow Resistance.
Source
Darkrune Gauntlets are crafted by Blacksmiths with a skill level of 300.
The components are:
The pattern is received in the mail by turning in [Encrypted Twilight Text] to Hermit Ortell in Silithus. There is a small chance he will mail this pattern to you.