Ossoona harness

The Ossoona harness is an armor set of the Sangheili.

Usage
The Keepward harness is employed by the eponymous Ossoonas, a Sangheili military role deployed to act directly as the eyes and ears of the Prophets in the field.

Halo 3
The Ossoona harness is unlockable as an armor permutation for Elite characters in Halo 3, exclusively as part of Season 7: Elite. It was one of a number of Sangheili harnesses intended to appear in Halo Online, referenced in game files under the name "Istirus".

List of appearances

 * Halo 3