mark12b said:
i prefer to use ziplocs or whatever for keeping stuff dry, so that I can put wet things in the bag too... if anything wet gets into a waterproof bag then everything inside gets wet too. e.g. i can carry wet towels and dry towels together in the same pocket. waterproofing the bag itself doesn't help with this.
I think the idea is to waterproof the outside of the bag, no? If you waterproof a breathable material like nylon it still lets air in/out and will dry quickly. I waterproof all my shoes with a spray I buy at Walmart and it works nicely, it would surely work on a DG bag as well.