From Starbounder - Starbound Wiki
A spacesuit backpack that is meant to help you breathe and stuff. It doesn't.
It can be found with the other set pieces inside chests in the Erchius Facility mission.
- Perturbed Koala: Added to game files
- Upbeat Giraffe: Implemented in game
- Cheerful Giraffe: Changed rarity from 'rare' to 'uncommon'