Flying at close to a million miles an hour in a wingsuit is one thing.

Drop in a high-five mid-flight and you have something completely different.

This amazing video captures extreme sports athlete Nathan Jones high-fiving a cardboard hand while absolutely blitzing it down the side of a mountain.

Jones completed the stunt on a mountain in the Alps, along with the help of his mate Sam Hardy, who filmed the action from another angle.

The Project: BASE organization was created by the two friends who are using their sporting abilities to raise funds to build a water well in Ethiopia. These guys are top, top people. Hats off!

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