|Held by:||Calvin (Spaceman Spiff), Hobbes, Batman|
|Ability to:||Breathe in space.|
Space breathing is the ability to breathe in space.
Calvin (Spaceman Spiff)
As Spaceman Spiff, Calvin is able to function normally in almost any alien environment, and even in deep space.
Calvin has also demonstrated this capacity as himself, as he has once gone clear to Mars and back without suffering any adverse effects.
Hobbes has gone to Mars and back without suffering adverse effects.
Batman can breathe in space.