Watching the world's best wingsuit pilots do their thing it's easy to forget just how difficult a sport it actually is. Travelling at incredibly speeds and plummeting through huge ravines, these pilots need frankly superhuman reflexes with even the slightest wrong move spelling disaster.
It's with this in mind that we're all the more blown away by Chilean wingsuit pilot Sebastian Alvarez's skills. The man was able to fly through a foam flag of Chile being held up by two of his friends, the flag was no larger than a small football table.
The degree of accuracy and skill is clearly off the charts, but what the video also shows is a clear representation of just how fast wingsuit pilots really fly.