Matthew C.wrote a review of Pacific Outdoor Equipment Eco Pneumo Drybag on March 10, 2009
I used the smaller of the three drybags to keep my books dry while paddling and sailing through Baja. They're not bulky or awkward at all, and despite all the rocks and brush it encountered along the way, the bag didn't tear and was still in great condition at the end of the trip 3 months later. I will use it again and again until something happens to it.
On a side note, a friend on the same trip had the same back and that one DID tear. So maybe don't abuse it too much.