Start by choosing a suitable volume. The right volume depends on the type of hunting, how long the hunt lasts, the environment (plains, mountains, etc.) and the weather. You will need a lot more material during the cold and rainy season and on multi-day hunts.
Volumes up to 30 L are also recommended for one-day hunts, while larger volumes will be more useful on hunts requiring a lot of equipment (migratory, hide hunting, stalking in mountains, etc.) or on sorties lasting several days.