Originally Posted by no1mad

no direct experience with any of them, but from what I managed to Google up, you put them in the proper ranking order. The Camelbak has a bit better warranty than the Dakine, but the Dakine offers a bit more cargo hauling options. I believe they are both 100 oz (3 liter), while that Marilla only offers up 2 liters and has the least amount of cargo space. And that H.A.W.G. appears to have a back panel that will allow more air circulation.