They lift us. Push us. Move us forward. Two billion of us wear them. Yet amazingly only 20% of us use them for sports.

The sneaker - not always used for running.

Sneaker Confidential is a witty, entertaining and intelligent look inside the heart and sole of our favourite footwear, as we discover how running shoes have changed our lives.

At the Las Vegas marathon, run alongside a barefoot runner and a sneaker fanatic who are racing to the finish line. In Germany, follow the fascinating tale of two brothers, and the bitter rivalry that created two running shoe empires.

NBA star Stephon Marbury sells his low-cost sneakers.

In New York, meet the basketball star who has turned the sneaker world upside down with his $15 shoes. In Boston, tour a New Balance factory to learn the secrets of shoe manufacturing. At Calgary's Human Performance Lab, discover how athletes get an edge on the competition. And in Detroit, sneak a peek as hip hop star MC Serch gives an us an exclusive look at his sneaker collection.

We'll find out why the sneaker was invented. We'll let you in on the secrets for finding the perfect fit. And we'll put ourselves in superstars' shoes to find out how they get their kicks.

So tie up your laces.and get ready for a fast-paced ride in Sneaker Confidential.