I bought the pack and the info that came with it said that it will hold a 100oz hydration rezivoir, so i ordered one from cabelas (it was the cabelas brand too) and there is noway 100oz rezivoir will fit, I folded it it in half acouple times and then it fit but im sure that aint right..So some 2 weeks ago I e-mailed Badlands and I havent heard one thing from em yet.

Sohas anybody else had this problem? If so what size rezivoir should i get? Maybe i need another brand?

Thanks for your help

I bought one last year for a mule deer hunt and had the sme issue. I bought a 40oz res. from Campmor. It sits in the main compartment and the hose just is long enough. It worked ok. I like the set up.

100oz definately won't fit. biggest i've seen in one is the 40oz( like swisslake said) I think they recommend a 36oz for the monster.

If you call Badlands they have a custom sized 40 oz. bladder that fits perfectly in the Monster. I really like their new hydration system because they are gray with black bite valves for those of us who are a little to paranoid about color.