Chelsea & Theodore white linen blazer SZ M

This blazer is the perfect blazer style! I think of nothing it wouldn’t go with. I believe it is a smallish Medium but who buttons a jacket? The last picture shows, if you look close, small dark spots. These are dark threads I think that are between the linen and the lining of the sleeve. One in the arm pit and the other in the fold of the arm. I think no one would notice. Smoke and pet free home.