I know it is hydration compatible but does...
I know it is hydration compatible but does it come with a bladder?
No, you have to purchase that separately.
I bought mine several years ago, and it did include the bladder & hose, stamped with the Dakine brand name.
I used the "Live Chat" feature to inquire about this because I need to replace the hose on my pack. The Dogfunk rep indicated that Dakine doesn't make bladders/hoses for these packs at all anymore, so you'd have to get a Camelbak bladder/hose component to use with this bag.