Camelbak is really tried and tested and bla bla bla
I'm not a small guy and I've fallen on my camelbak more than a couple times and it's held up
Several times I thought for sure I was going to get up with a pack full of water, but never have.
My vote is for camelbak. Love mine
"When I do good, I feel good; when I do bad, I feel bad. Thatís my religion." - Abraham Lincoln