High Neck Long Prom Dress: Colors Dress 3733 : , ,. Sleek and sassy, this high neck long prom dress 3733 by Colors Dress is a celebration of romantic style. With a triangle shaped cut out on the halter style high neck bodice, this long evening gown has a rosette at the nape of the neck. Thin shoulder straps lead to the open back of this long formal dress, while a matching rosette on the waistband tops the hip skimming long skirt. Leave a lasting impression at prom, galas, and other formal events, in this high neck long cut out prom dress by Colors Dress.