I like to carry a back pack because i was always taught that you can shed some layers but you can't put extra on. I take one during rifle season because i usually end up being the dog because i get my deer early. It is nice because i can take the layers of clothes off that i don't need and i can put them in the back pack. I also carry all of the esentails in there. The usual a knife, drag rope, a couple of bottles of water, Tp and all of the survival stuff just in case i get lost or i need to help a fellow hunter out.