I carry a camelbak pack with a water bladder, a healthy first aid kit, fire steel, tinder, a tube tent, a 2 person emergency blanket, some paracord, a headlamp, a fixed blade knife, snacks and a few assorted pieces of kit. I also carry a pistol and at least a reload buts thats an everyday thing. If its going to be a longer hike I will carry a water filter to refill my water bladder otherwise its just a small survival straw just in case.