Spacesuit is an Outfit in Fallout 76. These are items equipped cosmetically by the player "on top" of their armor. This feature is unique to this fallout game, and is meant to promote individuality and provide freedom for players to express themselves and role-play their characters.
How to get Spacesuit
You can find this outfit in Crashed Space Station, Airlock C7, enter 111418 at the keyboard to right of the inaccessible door
Spacesuit Notes & Tips