Survival kit

The Survival Kit was a marvel of engineering, about the size of a footlocker. One pull on the lanyard and it would unfold slowly into a hemisphere five meters in diameter. It had an airlock, insulated floor, twenty inflatable bunks, and windows. Properly anchored, it could withstand a hurricane or a herd of angry elephants. It has been used successfully in deserts, jungles, lunar wastes, even underwater. (TOS novel: Planet of Judgment)