slip or sheath dress?

Ok lets discuss. Purchased in 2014 right before I married my husband to wear to my cousins wedding. So this dress is magic. I wore this dress again 2 years ago.. Magic. It is very stretchy and I think they call it a "sheath dress" when it has the slip thing on the outside or something. Anyway I would say it would fit anyone from a size 8 to 14. It hits at about the knee. I will miss it cuz.. its magic.