This trick can be pulled off in dozens of varieties, each a different trick. But at the base, is the spring grab. In mid-air bend back and grab one of your springs. Bring your leg back closer to your hand to help out. Takes practice, but looks cool. You can see XDvandalJake and myself both pulling these off in the photo.
Another more advanced version of this trick is called the Double Spring Grab. Essentially instead of just grabbing one spring with one hand. You take both hands back and grab both springs. As always, don't forget to give yourself time to land with any variation of the spring grab trick.