Apprentice's Vest

Apprentice's Vest is a premium-quality medium armor. It can be obtained by Jedi Knights as a mission reward for completion of the level 1 mission Attack of the Flesh Raiders, on the planet Tython.

Source
The Apprentice's Vest is a mission reward obtained by completing Attack of the Flesh Raiders, a level 1 mission obtained on the planet Tython. The mission is granted to Jedi Knights upon their arrival on Tython following character creation.
 * Mission reward