Here's a beautiful plus-size sleeveless long sequin prom dress for the girl who loves to sparkle. Crafted in shimmering sequin-velvet fabric from the scoop neckline to the floor, this plus-size long formal dress is a glamorous choice for prom, galas, and other black-tie events. Supportive shoulder straps lead to the strappy open back of this gorgeous plus-size long evening gown, while the skirt smooths over the hips before a thigh-high side slit adds a look of allure. Surprisingly priced under $300, this timeless plus-size sleeveless long sequin prom dress offers an upscale look without breaking the bank.