In 1892, the U.S. Rubber Company began producing shoes with rubber soles, and its target consumers were athletes.

Everything You Wear Is Athleisure
Yoga pants, tennis shoes, and the 100-year history of how sports changed the way Americans dress

https://www.theatlantic.com/ideas/archive/2018/10/bicycle-bloomers-yoga-pants-how-sports-shaped-modern-fashion/574081/