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Invention on Instagram: "The suit shown is a Cold War era Soviet NBC protective ensemble, most commonly the OZK suit paired with a GP 5 gas mask. The OZK was a rubberized, poncho style garment with an integrated hood, designed to be worn over standard clothing along with rubber gloves and overboots. It was issued widely to soldiers and civil defense units from the 1960s through the 1980s and stored in massive quantities for emergency mobilization. The gas mask typically seen with this suit is th