Bigelow Day Pack. I have an earlier version than the one currently sold, and I really like it. Its my "Scoutmaster" pack that carries all sorts of gear during Scout events.
I have the same "Scoutmaster" pack, a couple years old version of the Bigelow. It was put together to carry all the
stuff that we feel we have to have when we're playing shepherd for the boys in the wild

. I leave it in the vehicle all the time now, and it's been a handy supplement to the rest of the gear that's always in the truck. It just reaffirms with my friends that I have a combination hardware / sporting goods store in the back of my truck.