It's offered to your attention the "space pants" for macaque small monkey to wear it during the experimental space flight. This pants has been used for animals (monkeys) experiments in 1950-s - 1960-s in the USSR Institute of Biomedical Problems (IMBP, Moscow). The monkey's "space pants" are designed with many clasps to fit bigger or smaller monkey. Below are the front and the back views.
eBay: 1950-s SOVIET SPACE MONKEY'S FLIGHT PANTS
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