Parkour/Basic Moves/Underbar

Steps

 * Approaching the bar at a nice pace, focus on where your hands will be placed.
 * Jump towards the gap in the two bars with your legs fully extended
 * When your legs start to descend, grab the bar above your head
 * Once your feet are through, plant them and allow your momentum to carry the rest of your body after them

Variations
Another variation is a 360 underbar, but it is especially more useful in freerunning…