Can you take off your thermal underwear and cotton trousers?

Of course, you can remove the cotton-padded jacket and trousers in September, because the cotton-padded jacket and trousers made at home need to be cleaned, aired and redone regularly every year. Because the newly-made cotton-padded jacket and trousers are warmer, they can be dismantled in September, and then new cotton-padded jackets and trousers can be made. Because September happens to be autumn, and there are still more than two months before winter, it is enough to make cotton-padded jackets and trousers.