How Allbirds Became A $1.4 Billion Sneaker Start-Up The Upstarts

The simple wool shoe started as a Silicon Valley favorite and has spread to Hollywood and beyond. Introducing The Upstarts, a new series about the companies you love that came out of nowhere and are now everywhere. » Subscribe to CNBC Make It.: In 2012, Tim Brown called it quits on an eight-year professional soccer career that included a trip to the 2010 FIFA World Cup as New Zealand’s vice captain. After retiring, one thing from Brown’s playing days would not stop bugging him: the