Short Sleeve Sequin Formal Gown: Mac Duggal 20363A classic style, this short sleeve long sequin formal dress 20363 by Mac Duggal is a sparkly dream dress. With scattered sequins from the surplice v neckline to the hem, this long special occasion dress is sure to shine at prom, galas, and other formal events. Sheer short flutter sleeves gives this gown a classic glamour, while a thin waistband tops the fully lined long a line skirt with a sheer sequin overlay that flows to the floor with a flourish.