3 sheer panels - one above the cleavage line, another around midriff and the lowest around belly button - all on a slant. Not sure the size but it runs small so maybe M. Check out the measurements please. No lining except at the crotch and the panel that cover your breasts. This suit looks fabulous on. Very body shaping. If you haven't worn these suits before be aware that they are firm control. They claim you look 10 pounds thinner when you wear these suits. ask me anything 🩷