For a backcountry elk hunter, that can mean a tent, food, sleeping bag, a bow or rifle, and a frame that can haul 100 pounds of meat
A 4-5wt keeps you casting comfortably around 30ft away, which is all you need most of the time but will still let you reach farther targets as you begin to test your technique
The build quality justifies the premium price-reinforced stitching, heavy-duty zippers, and a frame design that maintains shape even when fully loaded
A draw cord closure helps seal in warmth and fine-tune the fit
The larger the pack, the more camera (and daily) gear you can fit inside
Hollow core braid is even used for direct splicing leaders