Amazing unique trench

Cobalt blue trench coat with a full skirted bottom, and cropped length sleeves. Great condition, but one button is very loose and needs to be re sewn (see photo). Buttons are large and a silver plastic. I’ve always wanted to update with newer buttons but it is a bit snug on me so didn’t bother. Have always gotten so many compliments. Note, I bought in Europe so though it is size 8, I would say it is an XS.