Rue 21 one shoulder strap cocktail dress

This is a Rue 21 purple cocktail dress with ruching and a flowing fabric detail on the left side. It is a gorgeous lilac color and has a one shoulder spaghetti strap. I noticed that the back of the dress is a bit see through if you wear dark colors underneath due to the material, but I wore skin tone color spanx and had no issue with it! It’s in excellent condition, only worn once!