Soviet cosmonaut Anatoly Berezovoy wore these pants as part of a shirt-sleeves flight suit during his 211 day mission to the Salyut 7 space station. Berezovoy flew to the station along with his flight engineer Valentin Lebedev as part of the inaugural mission to the new station in 1982 on board the Soyuz T-5 ferry craft. Mission planners supplied the crew with an assortment of track suit type clothes because cosmonauts and astronauts found it easier to live in work in space in clothes similar to those that they wore on Earth. The fabric of the clothes has been checked for flamablity as well as comfort.
Cosmonaut Berzovoy sold these clothes at an auction. The estate of the American collector who purchased them donated them to the museum.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.