This a former East Germany MiG-21 pilot, about 1964, dressed in the exclusive VKK-4P pressure suit of Soviet make.
Also Soviet-made are the GSh-4MS helmet, the PK-1 pressure gloves, and the AShZ-58 life preserver. Shoes are German-made and actually used by the airmen.
The whole is an older outfit than the MiG-25 pilot. Could be anyway a Soviet pilot as well, URSS supplied its allies with the same items - from the helmet to the airplane.
the exotic 'capstan hoses' passing on the abdomen, adding to the ones that went from wrists to ankles without interruptions. Once instantly inflated with oxygen at the emergency decompression of cockpit at very high altitudes they made the suit literally squeeze the airman by pure mechanical action. This counterbalancing forced blood, body fluids, tissues and ribcage to not expand.
Helmet was actually issued to a German MiG-21 pilot. His name is printed on helmet's container and inside the comm. soft helmet.
An old design of helmet, but effective though when worn for short periods (pretty much uncomfortable, very tight, and claustrophobic). Here the metal plate on helmet's wooden container reads February 1972 as mfg. date.