Thon's robe. The robes in question were previously owned by Thon, an enigmatic and potent Jedi Master. He imparted his knowledge to numerous students, one of whom was Nomi Sunrider. By donning this attire, an individual could acutely monitor thought patterns with greater speed, strengthen their bond with the Force, thereby enabling enhanced energy concentration, improved resistance to stunning effects, and the capacity to utilize the Force for extraordinary leaps.
It is plausible that the Jedi Exile came into possession of these robes while journeying in 3951 BBY, during the period of the First Jedi Purge.
This particular item can only be equipped by a character aligned with the light-sided aspect of the Force.