If you have a shirt you no longer wear because it is too baggy, make sure to watch this video to learn how to readjust it so that you can start wearing it again. Place the top on a level surface so that its back is facing you, as you will start working on the back part of the top. Calculate the width of the top and pinch a third from each side. Join these points that you marked towards the middle part of the shirt. The next step will then involve sewing these two points together at the back of the top. By doing this you will remove the bagginess of the shirt by sort of hiding away the extra width from the two sides of the top.