There are 2 generations of the Peak XV. I have the first generation, which is slightly lighter, but only has 1 internal zippered pocket which will def. not fit a 32 oz bottle. The newer generation peak xv, which is being sold in stores right now, MAY have a water bottle pocket (i haven't checked myself, but based on what other peeps are saying, I bet it does) and is a bit heavier because it has added reinforcement panels to high abrasion areas.
I remember distinctively missing my water bottle pocket when I picked up my first generation peak xv