The Barlii DrySak has many qualities that will make you want to snag one for your next camping, beach or boating trip.
For starters, it's completely submersible, thanks to an airtight seal. It's lightweight, and made with sturdy Polyether based TPU, without harmful BPA and other nasties. (TPU is used in the medical industries because of its non-toxic qualities.)
The bag is tough, and won't stretch or crack in extreme temperatures. It's got a 600D coated poly-fabric bottom that is durable and won't break.
Finally, nearly 100 reviewers on Amazon gave the bag a glowing 4.7/5 stars.