Wear a brown down jacket: a particularly warm suit. Dark brown is very suitable for autumn and winter. Brown down jacket is very light, so it won't feel heavy pressure when worn on the upper body, but it is also real to keep warm. Denim shirt+white T is a pair of leggings, which is very slim and warm. Tight matching in autumn and winter is the only way to lose weight. Black and white sneakers and baseball caps are really casual and advanced.