Wing Foil: BackWing (How to)
Https://www.youtube.com/watch?v=Onquf8wvOu0 Alex Buss from the Kitesurf College (Kite Surf Wing & Foil Tutorials) just released his latest tutorial on how to do a Backwing; which is foiling with the hand wing on your back. Check it out!
Source: tonicmag.com