Check out this gorgeous sleeveless long a-line prom dress by Juliet that offers a classic look for your big night. With an embellished sleeveless bodice, this long evening gown has a round cut out in back that offers a sexy vibe with every turn. In misses and some plus sizes, this long formal dress has a banded waist with a long skirt that flows to the floor in an a-line shape for a figure-flattering look at prom, galas, and other black-tie events. Priced under $100, this sleeveless long a-line prom dress is a budget-priced choice with an upscale look.