People love their shoes and sneakers. Nike is a $250 billion company. Athletes make hundreds of millions endorsing their own athletic shoes. And vintage Jordan 1s are trading for thousands of dollars on sites like StockX. 

You also might vaguely know that the big shoe brands outsource their manufacturing to third parties. And that the shoes are made by low-wage labor overseas. "Somewhere in Asia," they usually say. 

But we don't hear all that much about the actual companies running those production lines. As it turns out, the biggest branded maker of athletic and casual footwear comes from Taiwan - making 300 million pairs each year.