http://www.ebay.com/itm/401023030449
This vintage hunting jacket was made in the late 1920s-early 1930s by the Utica Duxbak Corp, makers of Rain Proof Sportsman’s Clothing. This is their Pakbak model, which has a large, expandable game pouch, bearing a Feb 1926 patent. The jacket is made of canvas, with a corduroy collar. It has an early style front entry game pouch.

Chest (pit to pit): 25″ (doubled = 50″)
Shoulder to shoulder: 19″
Sleeve (shoulder to cuff): 23-1/2″
Length (Base of collar to hem): 30-1/2″