Endless compliments are yours in this slinky long prom dress by Eureka. With thin shoulder straps that criss cross over the open back, this square-neck long evening gown gets a sexy vibe with every turn at prom, galas, and other special-occasion events. In misses and some plus sizes, this long formal dress has a ruched bodice and a hip-skimming long skirt that pools into a small train that completes the look. Showcase the curves when you choose to slip into this slinky long prom dress that is surprisingly under $200.