Here's a long lace prom dress that is sleek and sexy. From the designers at La Femme, this gorgeous long v-neck evening gown smooths over the curves in beautiful floral lace for a captivating look at prom, a military ball, or another formal event. Supportive thin shoulder straps cross over the open back of this elegant formal dress, while lower back ruching contours the booty curves. The fully-lined long designer gown has an overlay of delicate floral lace that smooths over the hips before flaring around the knees and pooling into a small train that follows your every move. As flirty as it is elegant, this long lace prom dress by La Femme is a sophisticated choice for the girl who wants to stand out in a crowd.