When the capsule was evacuated, only his helmet above the neckseal would contain pressure.

The helmet also contains a "luminator" which emits a blinding light.

Their helmets contained full communications suites; in open air they could even use the planetary comsats directly.

The helmet also contains scanning devices enabling him to see in all directions around and above himself.

The sun shined a white blaze on the visor, making it seem that the helmet contained night and a single star.

The helmet itself contained a good part of its force.

His helmet, she realized, would contain a radio.

All drivers wear helmets and their cars contain either duct taped windows or a wire mesh insert.

The helmets they wore contained a device that transmitted the sounds of their underwater voices out into the air.

It was almost as though his coal-scuttle helmet contained a thunderstorm.