For the evenings that ask for something properly considered. These are our full-length pieces — sequin, crystal and beaded embellishment, velvet, and appliqué detail worked into floor-sweeping silhouettes. Construction matters more at this length, so look for the structured bodices and draped waists; they hold their shape through a long night of sitting, standing and dancing. Colours run deep and rich: black, midnight, wine, emerald, gold. A gala dress is rarely an impulse buy, and it shouldn't be — choose the fabric first, then the neckline that suits your shoulders, and let the length take care of the rest. Steam rather than iron, and hang immediately after wearing.