Read: JEDI robe. "Jedi" being the keyword. right now my sentinel is running around in Sith outfit.
I saw a Jedi running around with the Eliminator chest yesterday. The white armor makes it more Jedi than Sith imo, and red robes aren't inherently Sith either. (Maybe it's the name?)
I dislike the robes+armor look though, otherwise I'd wear it.