https://www.gostwear.com/bill-plaid-...ket-p-811.html
I have this Jack Shirt that I bought from
https://eglifarm.com/collections/jackets this fall because they had a better selection of sizes.
I have worn these Jack Shirts for decades. They last about 20 years of regular wear. The jacket is perfect for a car coat. They are NOT very wind resistant though. I originally planned to also order one of the jackets like you are looking at but it only has a one way zipper. No way to undo the bottom of the coat when sitting in a stand. The 24 ounce will not be too bulky. The 17 ounce Jack Shirt I have feels like a slightly thicker Flannel shirt. The Jack Shirt fits quite large and has lots of room to put a couple of layers of clothes underneath without binding in the shoulders or arm pits.