A suit that is used to allow people to survive in space. The suit provides oxygen and there is usually a cord attached to the ship so the person doesn't go off into space for eternity.

a pressure suit worn by astronauts while in outer space

a pressurized garment worn by astronauts during space flights

an environment all its own

a garment that provides pressure, breathing air, fluids and nutrients, waste removal, and protection against the space environment, and that enables a human to move and operate in the space environment