One-Shoulder Blue Formal Dress: Mac Duggal 68846In deep cobalt blue, this one shoulder ruffled long formal dress 68846 by Mac Duggal is as unique as it is beautiful. Crafted in silky chiffon from the asymmetrical neckline to the hem, this long cobalt blue special occasion dress has one shoulder strap that splits into two thin bands that lace up over the open back for the best fit. The cobalt blue long evening gown has a pleated waistband with a side cut out that offers a sexy vibe for prom, galas,