Navy blue lace sequined gown with nude lining

Brand new dress that I got as a gift and never wore. Really sleek but I'm moving and want to minimize my wardrobe. It has a hidden zipper and an open back, flows similar to a mermaid gown. It's a size 10 but I feel these run small because I'm a size 4-6 and this fits fine and the fitting gives me more flowiness on the bottom which looks really elegant when walking.