At 1400 cubic inches, it has enough space to carry mission essentials, EDC gear or equipment for a light overnighter.
This HAWG is currently serving as a summer-weight bail out bag, and I'm really pretty thrilled with it. I've gone through a lot of packs and bags, and this is one of my favorites. Reportedly, the HAWG is well liked by SEALs and other high speed military types.
At around the $150 price point, it's right in that price range with other top quality packs, and includes the new, very nice CamelBak Antidote reservoir.
Only complaint - the available colors does not include any camo patterns other than ACU and ABU. They should at least offer a multicam.
Available on Amazon and at other retailers of Camelbak's Maximum Gear line.