$84.90
This floor-length prom dress is built around a few details that do a lot of work. The square neckline sits flat and clean across the chest, making it easy to wear without a bra. Thin adjustable spaghetti straps keep the bodice in place, while a tie detail at the open back lets you adjust the fit through the torso.
The high front slit opens from mid-thigh, so you can move and walk without pulling at the skirt. The glossy finish catches light the way a camera loves, which is exactly what prom night asks for. The deep cobalt reads rich in photos and under event lighting.
Pair it with strappy gold heels, as shown, and keep the jewelry simple so the color carries the look. The open back means a standard bra will not work here. Worth keeping in mind before prom night.