Well I dont have any backpack suggestions but I do have sn idea that maybe you could do if you are going to do the hydration setup. Most backpacks have that "media player" (so they call it) hole at the top where most people slide there headphones through for music but instead Im sure you could slip the tube from the reservior through that hole. Just cut out the cd player pocket so you can get everything going. After typing that, I just realized thats probably what you did haha. Hope this helps!