Drawing a jacket is not too complicated once you get used to drawing clothing. It is made up of various parts that are generally the same for most clothing. This makes it easy to draw a jacket, even for those who have no experience drawing. Here are some steps to draw a jacket: first, sketch the main body. This should resemble half of a vest or sleeveless shirt. After that, you should add the collar and cuffs. Remember that the overall shape should be narrow.
Next, draw the collar of the jacket by copying a reference image. Then, draw the sleeves by stretching them from the left side of the collar. On the outer jacket, the shoulders should curve outward. Once you are done with the sleeves, you can draw the front and back of the jacket.