From La Femme, this elegant strapless sweetheart long a-line prom dress is effortlessly beautiful. With gleaming embroidered lace from the sweetheart neckline to the horsehair hem, this strapless long designer dress gets a spectacular elevated edge, while the sheer waist wraps around to the lace-up back for a flirty look. The open-back long formal dress has a long a-line skirt with matching embroidered lace and a side slit that adds a touch of sexy to this already gorgeous gown. Offered in misses and some plus sizes, this strapless long a-line prom dress is a truly memorable choice for prom, galas, and other formal events.