I will be going on a trip oversees for a few weeks and will just take my Gregory G pack as my luggage. This time, I will need another smaller day pack that I can stuff in it until I reach my destination and then use this day pack during the day for hikes and exploring while my G pack is in the hotel or hostel. I thought the Ion would work but does it have a stiff back to it like the rest of the Jams?
What would be a good travel day pack if this isn't a good idea? I will need to carry some food, rain gear, jacket, water. Maybe go kayaking, biking...