Take a hollow position on the bar, maintain straight arms, engage your lats & hinge at the hips (knees may be bent or leg straight as you gain strength)
Get into the start position by pulling your torso to parallel, point your toes to the sky, legs and arms straight.
Grip the bar as if trying to bend it, and pull yourself to into an inverted position, driving your feet to the sky, and fully extending the hips. Maintain PPT, squeeze the gutes and keep the core engaged.
Pause at the top, and reverse with control, by hinging at the hips. Repeat for Repetitions.