This is an outstanding LAFAYETTE 148 New York blazer. It is lightweight and 100% wool, it has a three button front closure, rough hem finish, a notched collar and sleeves with a 2 1/2 inch slit. Armpit to armpit 20” Under arm length 19.25” Back length 23” Measurements are taken while garment lies flat. Please check measurements against a like item in your wardrobe and feel free to reach out with any questions. Bin 40