When did Explained Season 2 Episode 4 air?
Explained Season 2 Episode 4 aired on October 17, 2019.


This documentary series, made in partnership with Vox, explain some of the world's current trends, from politics, to science to pop culture.

It began with bloomers. Then came spandex. Now we sport leggings and other activewear everywhere. How did comfy, casual clothing go mainstream?
Direct answers for episode-level questions and details.
Explained Season 2 Episode 4 aired on October 17, 2019.
This episode runs for approximately 16 minutes.
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