If you're driving down the highway, you might see a man walking with ski poles and a backpack (with his wet socks pinned to it). Chances are it's Adam Bradley. Adam is a record-breaking fastpacker. He walks 500-mile stretches at a time, through some of America's most remote terrain. He even hiked Nevada's renewable energy transmission line (known as "SWIP") to see its impact on the environment. Adam tells us the secrets to walking 40 miles each day, and how to survive with only what he carries on his body.