Straight Punch

The Straight punch is the most fundamental punch in Wing Chun Kung Fu.  The punch travels in a straight line and always stays along the centreline as it travels outwards. Punching in this way allows the punch to travel the shortest distance between two points.

The fist is held vertically as this style of punching has better alignment between the wrists and the forearm.  

Make sure your thumb is tucked outside and that you don't grip your own thumb.