Baby shop: You can go to the baby shop to buy children's cotton-padded jackets and trousers. These stores usually have cotton-padded jackets and trousers specially designed for babies, with a variety of choices and guaranteed quality.
Online shopping malls: Taobao, JD.COM and other online shopping malls have many shops selling children's cotton-padded jackets and trousers, which can be searched and purchased online.