It is an overcoat Zhou Enlai was wearing in winters during the Great Cultural Revolution.In 1968, Zhou
Binjian, the nephew of Zhou Enlai (the third daughter of Zhou Enshou, the elder brother of Zhou Enlai), went to
Inner Mongolia to support the construction of the boundary areas and work in the countryside. Before she left,
Zhou Enlai sent the military uniform to her to resist cold and windstorms.