EXCLUSIVE AT NET-A-PORTER. Reformation takes a small-batch approach to its designs in order to maintain the most eco-friendly practices possible - so when it comes to this exclusive polka-dot 'Simi' top, you'll have to act fast. Cut from sustainably sourced crepe de chine, it's shirred through the bodice and has elasticated balloon sleeves that can be worn up, or pulled off the shoulder. The cropped hemline works best with high-rise silhouettes.