Go Navajo. That was the message from Isabel Marant, who shifted her focus from last season's California surfers to Native Americans on the runway today. Given her reference point, we're talking about printed and real feathers and miles and miles of fringe for Fall. "And because wherever Indians are, cowboys aren't far behind," she joked backstage, "there's lots of denim." AS USUAL WE LOVE ISABEL MARANT : THE MOST BRILLIANT DESIGNER EVER!