Comfortable clothes, which used to be the opposite of fashionable and stopped being so around the time this game was made.
Puffer jackets, loose trousers and crop tops are the vocabulary, and the challenge is that comfortable clothing hides the body, so the outfit cannot rely on shape the way a fitted look does. What carries it instead is proportion: something oversized needs something narrow next to it or the whole thing goes shapeless. That single rule is most of what makes casual dressing work.
Babs and Friends Back to School