Etoile Isabel Marant button up shirt. Size38 or US 6. 100% cotton

Reposhing this item I purchased from @d_soque. Etoile Isabel Marant button up shirt. Size38 or US 6) this was the description I was given! This shirt is not a 6 it’s a 4! Note: I believe this top has been shrunk, making it fit more like a 4, small, it says 38 but fits like a 34