This is a gorgeous blazer from Brooks Brothers 346.
Made of 100% wool, it's dark navy blue and has golden BB 346 Golden Fleece buttons.
The jacket features a two-button front, center rear vent, and front flap pockets.
This jacket is NEW, without tags. The front pockets are still stitched and the jacket has never been worn. It is guaranteed to be authentic and absolutely perfect.
All measurements done across the back with the jacket laid flat.
Compare my measurements with a jacket you have that fits you well. Even new and unworn items may have been altered. You will NOT be disappointed.