EXCLUSIVE AT NET-A-PORTER.COM. Kate Halfpenny always knew she wanted to work in fashion - as a young girl she would sit under her mother's sewing machine and collect scraps of fabric that fell from it to create pieces of her own. Made from lustrous stretch-duchesse satin, this elegantly simple 'Dion' gown has precision-placed darting to flatter the silhouette and turns to reveal a classic godet train. The thin straps are elasticated, ensuring they won't slip down while saying your I dos. Shown h