Cold-Shoulder Long Sequin Prom Dress: Amoris BD4004If you're looking for an upscale long sequin prom dress that is affordable, this is your lucky day. At under $100, this gorgeous cold shoulder prom dress can be in your closet, ready to turn up the heat at prom, military balls, and other fancy formal events. With banded sleeves that drape over the upper arms, this v neck sequin evening gown gets a cold shoulder look, while the hip skimming long skirt opens in a side slit before flowing to the floor.