Vault 77 Jumpsuit
http://fallout.bethsoft.com/eng/vault...
^^^^STORY HERE
In Fallout 3, you can find it if you search the Slaver barracks in Paradise Falls (It is on a shelf). Next to it is a holotape labeled "Burn this Goddamn Jumpsuit." In it you hear an unnamed Slaver request that the jumpsuit be destroyed fearing that its former wearer may come back for revenge.
When you wear the Vault 77 Jumpsuit in Paradise Falls or around any other slavers, it strangely has no effect on them despite the fear of the Puppet Man in Slaver colonies and the "Burn This Goddamn Jumpsuit" Holotape.
The suit looks almost new, despite being 200 years old.
The Vault 77 Jumpsuit gives +5 to Melee Weapons and Unarmed skills, as it is said that these were the Puppet Man's favorite methods of murder