Giorgio Armani Floral Damask Red Blazer Jacket Vintage sz 40?

Giorgio Armani Floral Damask Textured Red Blazer Jacket Vintage sz 40? I couldn't find the size. Very Good Condition. Pit to pit is 20", length is 29". The color is a true red. It has shoulder pads, button down and a removable insert at the V neck. Fully lined.