I borrowed a friends CamelBak and went for a 10 mile run. The pack fit great and didn't bounce around while I ran. The bite valve didn't leak and even it if had then is a shut-off valve..! The pockets were large enough to hold several gels and easily accessable. The only problem I had was the hose would bounce around when I would run at a faster pace. It wasn't a big issue on a 10 mile run but if I was running for 3+ hours with the bite valve hitting me in the chest it might be. All in all a good product that I can see myself purchasing in the near future.
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