Strappy-Back Long Jersey Prom Dress by La FemmePositively beautiful, this long jersey prom dress by La Femme is a fabulous choice for the girl with a stylish edge. The v neck designer evening gown has crossing panels at the midriff that accent the waist, while thin spaghetti straps provide a statement as they criss cross the open back. Stretching over the curves, this gorgeous formal dress has a long skirt that opens in a side slit before reaching the floor. For a striking entrance at prom, a