Brand new condition, I only took this one on a single airplane flight.  Through some misfortune, I ended up with two of these.
This is version 1 of the bag, does not have detachable backpack straps or the extra-long zipper opening.

I've been traveling the world using various sizes of these bags and they are amazing.  Very durable and pretty much waterproof (not submersible of course).  This size is too large to be used as carry-on luggage, unless it's underfilled.  It's "pretty big" as you'll notice when you carry it around, but not kitchen-sink huge.

Shipping from California, USPS.  Free shipping to the USA.
$110 via Venmo or Paypal, split the fees if any.