Ortlieb pretty much wrote the book on expedition-grade waterproof duffels. Tough as old boots, we've taken them snowshoeing in the Norwegian arctic, on safari in Botswana, and pretty much everywhere in-between. This latest version boasts that same dependable Ortlieb resilience, but in a lightweight PU-coated nylon fabric that shaves 25% off the weight. Access to the interior is via a lockable waterproof zip with a chunky T-pull and jam-protection function, and you've also got an external zip pocket for smaller odds and ends.