Mens' athletic supporters come from France. Various inventions had been tried to help mens' anatomy to remain stable while they were riding horses, but nothing was effective. A clever farmhand, searching for a solution, devised the idea as an adaptation of mens' braces (known in the US as suspenders). This adaptation was an immediate success. He left the farm, and began a business. What is important is his name: Jacques Strappe.
Laissez les bon temps rouler!
And as always, thanks for listening!