this top is new with tie up detailing in front size is -XS , would fit S and even M also as it has elastic gives pinterest vibes
can be worn both as a tube top or off shoulder top or normal top in square neck
if you want to wear it as tube top you can wear as it is and if as off shoulder - it has area i don't know what to call it but sleeves area which comes in normal off shoulder top have added the photos