Hermetic helmet gives the pilot to the possibility of flying at high altitudes. Ensure the survival of during ejection.Such pressurized helmet used in aircraft class MiG-25 and MiG-31. For the protection and comfort of the pilot. Were kept at military depots. I have different sizes and other interesting goods. If you have any questions about the item. You can write me a message. Requesting the final value, or use the option. The item "Original Russian USSR pilot flight helmet GSH 6 Soviet space air force" is in sale since Saturday, July 20, 2019. This item is in the category "Collectibles\Militaria\Militaria (Date Unknown)\Air Force". The seller is "ariandr888" and is located in Europe. This item can be shipped worldwide.