It all depends on the situation. If I’m wading into a swamp I wear a Drake or Avery strap vest. It carries my shells, gloves, face mask, dog leash and headlamp. Rarely I will bring a bottle of water or a Pepsi. No need for a bag for that kind of hunt. Granted I’m rarely in there for more than a couple of hours. Hunting out of a boat or on an all day blind hunt it’s different. My bag is the size of a small duffel but I try to be prepared for the unexpected and for getting wet. I usually have four pairs of gloves with me in the boat.