The David Clark Company outlines the history of their "Crew Protective Equipment". Good images and information on their suits is available here. Information is available on the following equipment.Anti-G Suits used by allied fighter pilots during World War IIPressure Suits developed for rocket plane researchGemini Mission Space SuitsApollo Communications Carrier worn by all Apollo astronautsStandard Full-Pressure suits worn by pilots of various high-altitude aircraftAdvanced Crew Escape Suits worn by space shuttle astronautsA number of "Aerospace Links" are provided at the bottom of the web page.