Isabel Marant Etoile sleeveless, turtle neck top in fluo pink size approximate

NWT measurements are totally approximate. since this is a knitted top a holey random hole is a characteristic of the material, no separation with any of them ,never washed or worn. RN TAG with type of material and size was never inside the top. Best way to figure size is going according to my approximate measurements. I am usually a size Med. and when I tried on ,with a shirt under ,it did fit me very well . material has some stretch. from my research this material is merino wool,and was not itchy on me.