In “Sex and the City,” Sarah Jessica Parker’s wardrobe was all about the look and the label. In “Divorce,” her new HBO comedy series, it’s more about emotion.

Parker, back on HBO a decade after starring as single girl Carrie on “Sex and the City,” plays a wife and mother who decides to end her marriage. She stars opposite Thomas Haden Church as her (maybe) soon-to-be-ex-husband.

Clothing is part of “the whole person in a much more subtle way. You see it in everything: in Thomas’ character, in the children’s clothing,” Parker said. “The family is isolated in a period without it being a period piece.”

She was inspired by the look of 1970s film, Parker said, and most of what her character wears is from vintage or thrift shops. Costume designer Arjun Bhasin, who has worked with filmmaker Ang Lee, is in charge of the wardrobe.

“Divorce” debuts Oct. 9.