The good part about hunting with trad gear is it just doesn't take much.
I've never found that i need a pack or a possibles bag. I do stuff my pockets of my BDUs.
I take a knife on my belt, a wind powder bottle in my pocket, my t-cell clipped to a pocket, maybe an extra sweatshirt, binocs on my neck, gloves in pocket, compass around my neck, snacks in the BDUs water bottle in a pocket. Some stuff fits in the quiver pocket like BH sharpener for touchups.
I guess it depends on how long you are staying out. Maybe an all day Elk hunt would require a pack with light raingear and more water/food, first aid, light survival stuff.