Any canoeist should have this
These are the toughest dry bags that I know of. Thick, durable rubber all over ensures a complete seal from water, rocks and other snags. I use my 4 bajas particularly in the BWCA, where when something gets wet, kiss it goodbye. The D rings make them easy to hang from bears, and just as easy to attach to the canoe to prevent a loss. The toughness of them also poses a problem when I try to bring them on a pack trip, as they aren't as flexible and compact as nylon drybags. But still, nothing compares on the water.