Open tie back sequin party dress

This was my college graduation dress and has only been worn once! The top is covered in golem sequins and the bottom is a breathable, semi-sheer material with a slip underneath. The back is open and has some ribbon that you can tie into a little bow. I didn't find it itchy at all and it looks lovely on! I actually have two of the same dress, one large and one medium. The large fits more like a medium and the medium a small. The medium is new with tags.