It is very light and comfortable to wear. Cotton is a fine down jacket with 90% down and 10% feather. I ordered L size, but it was US size, so it was big. The site has a detailed description, and when ordering, we recommend ordering one size two size small. The design is wide and the length is short, so it is difficult for me to wear it fashionably. It is warm and light as a cold clothes, so there are "4 stars".