The TT-17A Elite Vanguard was a type of Mandalorian armor used during both the Cold War and the Galactic War by bounty hunters and mercenaries of the Mandalorian clans along with it's similar counterparts the RD-17A Master Striker armor and the TH-17A Elite War Medic armor. The armor sets remained in popularity with the Mandalorians loyal to Mandalore the Avenger during the war against Zakuul despite the rise of popularity of the Mandalorian Seeker armor among the warrior clans.