Two trouser looks that work: first, slim cropped pants. Play with contrast in shape and texture: feminine flats look chic with slim-legged pants cropped at the ankle. Keep the top loose and relaxed. Second, try full-legged pants. Fuller pants look best with sleeker tops. The counterpoint of menswear fabrics like pinstripes or herringbone tweeds and a romantic blouse is a new style statement right now. Above, Sigrid Olsen pinstripe pants in rayon/poly/spandex ($139). Shin Choi silk-chiffon blouse ($218). Nine chunky pumps ($89).