I get paranoid sometimes when I am carrying around some of my fancier electronics. It’s not that I’m worried about getting mugged, it’s more a question of getting them wet, because we all know that water and gizmos don’t really gel.
Most of the waterproof backpacks I know are quite simple because any stitching will reduce the integrity of the waterproof material and has to be properly sealed. The Watershed Big Creek isn’t just a dry bag, it’s an amply-sized 24L backpack with comfortable, padded shoulder straps. The bag measures 24″ x 10″ x 6″ and is made out of nylon coated with polyurethane. In place of a traditional zipper, the bag has a ZipDry closure that works kind of like a Ziploc bag to keep all moisture out.
The styling might be an acquired taste, but it has a militaristic look that’s not unpleasing. The Big Creek sells for $106(USD) directly from Watershed in a number of different colors, as well as a camo design for about $32 extra.