Ridler's competing in the National Championships of Wingsuit Flying in Chicago, also known as wingsuit racing.

Ridler's loved the idea of flying since he was a kid in northwest Minnesota, looking for a way to get away. Barred from a commercial or military flight career by eye problems, he was intrigued by BASE jumping, but abandoned the idea as too dangerous. So now he jumps out of planes and races through the sky at 200 mph.

Ridler's first wingsuit flight was two years ago. It would have been sooner, but the US Parachute Association requires you complete 200 skydives before allowing you to exit a plane dressed like an amped up flying squirrel. "The one thing I was the most nervous about," he says, was "strapping myself into a straight jacket and throwing myself out of a plane."