I have three Mystery Ranch packs and use them based on what my hunting trip requires. For 5 to 7 day hunts I use my Marshall pack and compress it for use as a day pack during each day of hunt from base camp during that trip. For 2 to 5 days I use my Metcalf pack and also compress it for use as a day pack each day out. For one or two days out I use my Crew Cab with the Mystery Ranch accessory lid, it expands nicely to fit your needs or pack out game.