You are considering a vintage Brooks Brothers blazer in size 41R.

Length: 30" collar seam to hem down back
Chest: 21.5" underarm to underarm across front
Sleeves: 24.5" from the shoulder seam to the cuff with 2.5" of fabric inside the cuff
Shoulders: 19" across back from seam to seam

Made in the USA from 100% Wool. Partially lined.

Navy mid-weight gabardine with gold buttons. 

Two button front, accent buttons on the cuffs, two flap patch pockets, one pocket on chest, two inside pockets, single vent.

In great pre-owned condition!