Mac Duggal prom dress. This beautiful sparkling, long prom dress is Mac Duggal’s number one selling sequin gown and would look beautiful on any lucky girl. The design of this fully sequined gown over stretch knit fabric is totally fashion forward. The revealing keyhole neckline becomes complete with a fabulous open, cowl back. Lastly, a sexy high leg slit makes this gown a perfect option for showing off your fantastic figure. From Dress & Party, a prom dress store in Columbus, OH.