Vtg 70s Patagonia Padded Shoulder Canvas Shirt Recoil Shield Shooting Protection

Vtg 70s Patagonia Padded Shoulder Canvas Shirt Recoil Shield Shooting Protection This is a quite a thick canvas material that is well suited as a work shirt or shirt jacket. There's a quilted padded shoulder that is meant to protect agains recoil when shooting a fire arm in field shooting. There is some light fraying of the fabric towards the front hem. The fraying does not go through the fabric. The back side of this area is intact and show no signs of thinning. Also some light, small marks (discoloration and ink ? spots) on the back left sleeve. See the last 3 pictures. Otherwise in excellent, very clean condition. No major stains. No holes or other cuts in the fabric. Size L -- see pictures for approximate flat measurements