Pressure suits aren't new. They were developed after the Great War, while the first practical aircraft suits were born after the second iteration. By 1956, in preparation for the new generation airship flight, de Havilland created a revolutionary pressure suit. Sufficiently effective, cheap and mobile. The Mk1 full body altitude suit was a real miracle. Hundreds of modifications have been made, but the basic design remains. This suit is what has allowed Oceanyka to take the stratosphere as another home of man.