A dress with sequin detailing concentrated at the bodice is more wearable than all-over sequins whilst still delivering genuine impact. The sequins sit where they create visual interest at chest level rather than covering the entire silhouette. The bodice is usually fitted to show off the sequin placement properly. The skirt is often plain fabric in a matching or complementary colour, which creates visual balance and makes the dress feel designed rather than randomly assembled. The length is usually midi or knee because the contrast between sequined and plain fabric needs space to work properly. The neckline is often a V or sweetheart shape that frames the sequin detail. These dresses work for halloween parties and beyond because the sequin placement is intentional rather than excessive. You get party impact without the commitment of all-over sequins.