It's time to wear cotton-padded jacket again. The cotton-padded jacket is still the cotton-padded jacket of last year, but the people around you are not the people of last year.
It's the season of coexistence of spring, summer, autumn and winter. Some people wear cotton-padded jackets, others wear sweaters, and children who play ball wear half sleeves.
It's the annual season when you wear short sleeves and watch me wear cotton-padded jackets.