I have a 70 oz HydraPak that I just got a few weeks ago for about 20 bucks, was last year's model closeout from JensonUSA. I like it a lot, it's nice that the bladder opens up and flips inside out, very easy to clean. It has space for a few tools, keys, snack, phone and id. I do like the Camelbak's bite valve better, and I think I'll replace my bite valve with a Camelbak valve, other than that, it's a great pack.