EXCLUSIVE AT NET-A-PORTER.COM. Johanna Ortiz is loved for balancing feminine ruffles and volume with clean, flattering shapes. This cotton-poplin 'St. Barts' top is skilfully tailored for a slim fit through the arms and waist then ruched, gathered and folded to create chic bubble sleeves and a waist-defining quilted peplum hem. Complement the plunge neckline with gel shapers.