Here is a couple excerpts from the wookiepedia page Spoons!
Dengar's armor consists of bits of sandtrooper, stormtrooper and snowtrooper armor, that were repainted from their original white. This was to point to his Imperial past!
Dengar's body armor was a conglomeration of various Imperial armor. The chest plate and undersuit were from a Snowtrooper, while the pauldrons, gauntlets, midsection, codpiece, and thighs were standard Stormtrooper armor. The greaves were slightly modified versions of the left leg of Stormtrooper armor.[source?] During an assassination, he would often shift his facial wrappings to cover his mouth and nose, hiding his identity and adding to his intimidating demeanor.