Yves Saint Laurent Satin Blazer

no fabric and size tags but this looks and feels like satin 2 button front closure, lined, breast pocket, front patch pockets, double vent at back size tag shows its a 40 ( M), not sure what's the equivalent of that in US sizing but this could be a small, to ensure proper fit, pls refer to pics for measurements there's faint residue in the collar, not sure if that will come off when dry cleaned (refer to last pic), otherwise, in excellent pre-owned condition