INSIDERSPhotos: Material GirlsIt girls are leaving their imprint on fashion.by Karin NelsonSep. 20, 20151Alice Lancaster wears Calvin Klein collection top and skirt. Photo by Sloan Laurits. Styled by Sam Walker.2Langley Fox Hemingway. Courtesy of Max Mara.3Marcela Gutiérrez. Photo by Grant Greenberg.