The current Brooks jackets by the rebooted company are 3oz naked cowhide. Nothing like the old ones and they modified the pattern a little.
I estimate the older ones with the chest pockets are 2 to 2.2 oz, but the leather varies a bit between jackets and even on the same jacket. On my current Brooks the sleeves are thicker than the body. I have a jacket made of 2.2oz oz cow hide (which I ordered as such) and the Brooks is identical in weight and feel.
Mine came to me mint.
I estimate the older ones with the chest pockets are 2 to 2.2 oz, but the leather varies a bit between jackets and even on the same jacket. On my current Brooks the sleeves are thicker than the body. I have a jacket made of 2.2oz oz cow hide (which I ordered as such) and the Brooks is identical in weight and feel.
Mine came to me mint.