In view of many years of dressing experience, I personally think that wearing a trench coat is effective for the following reasons:

1 From the perspective of matching suits, high heels are the best shoes, which are a little out of line with flat shoes. You will look taller when you put on high heels.

In view of the more dark suits in autumn, it will give people a sense of visual depression and make you look thinner.

If paired with vertical stripes, it will lengthen your body proportion and make you taller.

4 with a suit, if it is with a sling or a low collar, it will make your neck slender, and it will give people an extremely tall feeling from the front or side.

In view of the above reasons, it is better to wear a windbreaker.