January 19, 1935 –
During a Chicago snow storm, Marshall Field’s State Street store featured a display window with a brief-wearing mannequin. Surprizingly enough, Coopers Inc. sold the world’s first jockey briefs, on this date.
Designed by an apparel engineer named Arthur Kneibler, the briefs dispensed with leg sections. The company dubbed the design the Jockey, since it offered a degree of support that had previously only been available from the jockstrap. The day of its debut, Marshall Field sold out its stock of 600 packages by noon and sold 12,000 more in the following weeks
