Off the Shoulder Classic Long Formal Dress 4289 Festima.Ru (181242139). Here's a classic off the shoulder long formal gown that is as beautiful as it is budget friendly. Perfect for prom, galas, and other formal events, this richly designed off the shoulder evening gown is affordably priced under $100. With a criss cross bodice and banded sleeves, this elegant formal dress has a long skirt that smooths over the hips before opening in a side slit and ending at a dramatic floor length. Offered in misses and some plus sizes, this off the shoulder long formal gown is great for the savvy girl with upscale taste.