Tailored Blazer

Long sleeve light gray double breasted blazer with three front pockets. One inside pocket. Lined. No size tag. (Closed) Bust armpit to armpit: 21.5", shoulder to hem: 30", sleeve length: 25". No materials tag but would guess it's wool. Designer: St. Michael's. This is a tailored piece so I'm unsure if a button is missing or if it was made that way. Either way you can just wear as is or remove the other button on the opposite side. Also inside pocket has a rip(see last pic) . Otherwise in great vintage condition.