Ann Bonfoey Taylor, a skiwear designer-slash-Colorado aristocrat and the subject of a recent exhibition at the Phoenix Art Museum, was Michael Kors' muse for pre-fall. "Nan Kempner on the range," he called her, meaning the lady liked her clothes. The sporty, slightly rugged sensibility of her personal collection rubbed off on his: knee-length walking shorts met a dip-dyed Mongolian lamb vest, and a tissue-thin knit tank was worn with a low-slung taffeta ball skirt belted at the hips. For accessories, he showed harness bags and polished cowboy boots.