|The following is based on Fallout Shelter or Fallout Shelter Online and some details might contradict canon.|
It is worn by legendary vault dweller Old Longfellow.
If the disassembly of the outfit is successful, junk is rewarded:
Tattered longcoat (1)
Free space in the storage room
Brahmin hide (3)
Yao guai hide (1)
Tri-fold flag (2)
At +8, like Piper's outfit and the Minuteman uniform, offers the second most attribute points (the outfits with the most attribute points being Rackie Jobinson's jersey and detective outfit, each with 16 attribute points) out of all outfits in the game.