Perfect MTB Pack!
I bought this for mountain biking and it's perfect. The Lid-Lock is so convenient and the hydration reservoir couldn't be better. Unlike the Raptor 10, the Raptors 14 and 18 can easily carry a full-face helmet. The only thing I like better about Camelbaks over this pack is the bite valve. This beats a Camelbak in every other category, though. Get one.