|The following is based on Fallout Shelter and some details might contradict canon.|
Why? Because you're a Tunnel Snake. And you RULE!”— In-game description
The outfit consists of a black leather jacket worn over the standard-issue vault suit and a black belt. This boosts dwellers Perception by 2, their Endurance by 1, their Charisma by 2 and their Agility by 2. This outfit can only be worn by male dwellers.
Yao guai hide (5)
Teddy bear (4)
Tunnel Snakes' outfit (1)