Rodney Carroll wrote a review of CamelBak BlowFish Hydration Pack - 1047cu in on September 27, 2002
Not sure why anyone would buy a daypack without a hydration bladder. My Blowfish holds pack able raingear, a first-aid kit, sun block, bug repellant and 3 liters of water with room to spare for snacks and such. Carries comfortably too. I also have an Unbottle I toss in the bottom of my kayak. One of them accompany me everywhere (even business trips). Get the cleaning tools and hanger because they will get funky in a couple days of non-use.