Cheered on by her mentors-including Trevor Ballin, an alum of Proenza Schouler, Isaac Mizrahi, and Calvin Klein-she launched Kallmeyer in 2012. The knowledge that she creates a killer three-piece suit or a popcorn-fabric, open-back dress is passed through word of mouth; she's never staged a runway show or joined the CFDA. Last week celebrities did just that. We are trying to be super...