I put my pack on top of my treestand/climbing sticks. I hunt public land and a few of the places I go are are 3/4 to 1 mile in and up and down a bit. Longer if I take a circuitous route. Unless you are going to pack out meat or stay longer than a day you can probably get by with a good daypack. If the extra clothing won't fit inside the daypack just attach it to the outside of your daypack or your treestand. You'll be putting it on after you cool down from the hike anyway.