Decades ago (40+ years) I used to hunt in an area where you literally had to pack out your kill on your back at least a mile to the first access road. I used the frame from an open framed backpack and, after field dressing the deer, would carry it out lashed to the pack frame. I always covered the deer with my orange coat and put an orange hat or rag on the deer's head. I had this weird fear of someone shooting at the carcass as I had it strapped to my back. Must have worked because I'm still here
I always wear some orange if there is a chance of any other hunters in the area I am in.