Do they run large, small or true to size? I'm a small 8. What size would be best on me? An XS or S? For reference I'm an XS in Hayley Menzies, a 0 in Ba&sh and an 8 in Olive Rubin. Not sure if that helps at all.
Also how do Ghost dresses fit? The fabric looks very unforgiving and I feel like it might show every lump and bump. Is shapewear required?