Lace-Up Long Satin Prom Dress Colors Dress 3850Crafted in gleaming satin, this lace up strapless long prom dress 3850 by Colors Dress is ready to wow the crowd. With a crystal beaded bodice, this strapless evening gown has thin bands that lace up over the open back for the best fit at prom, galas, and other formal events. Side pleating adds a curve hugging look, while this strapless long formal dress has a long skirt that smooths over the hips before draping to the floor and into a dramatic train.