>>2114866I use the Twin Needle MiniMAP for the range and as a day pack with the Hill People Gear general purpose pouch on the top molle for nick nacks, but it is very small. The main compartment will be almost completely filled by the water bladder. It can fit lunch, small cooking sets/a few magazines, and an ultra light raincoat but that's about it. The real drawback is that you have to buy the straps separately.