Backless La Femme Long Prom Dress with Front KnotHere's a long prom dress by La Femme that fuses curve hugging style and trendy details. The fabulous long designer dress is crafted in soft jersey from the v neckline to the hem of the floor length skirt for a fitted look at prom, black tie weddings, and other formal events. A front knot twist detail at the waist adds interest to this slinky evening gown, while thin adjustable shoulder straps cross over the open back for a flirty look. Simply lovely,