Previous best seller, open back twisted low back. Last two piece in M . Runs slightly big. FitS M /L . Very sexy basic . Bust 17.5", length 25" ,shoulder 14",sleeve 23.5". . Fabric polyblend , spandex.the bust portion is bigger than I expected .great if you are well endowed;) This top is loose fit. Previously as cover shot I was wearing size S : previous batch was true to size. This batch runs big and I am selling it cheap.