Here’s footage of Jeb Corliss, a BASE (buildings, antennas, spans & earth) jumper, wearing a wingsuit and “flying” though a hole in a mountain in China.  I emphasize the word flying because the suit he’s wearing, while generating lift as a result of a relatively large surface and air pressure (similar in principal to the mechanics of a flying squirrel, as opposed to a bird) is not preventing him from falling.

It’s actually similiar to gliding, or falling with style–as Buzz Lightyear would say–which is why he also wears a parachute.

Thanks to CNET’s Crave for the heads up.