Enter: Inflatable kayaks. (While most collapsible kayaks are inflatable, there are a few others that use frames and folds instead of air; some are good, some are more cumbersome than convenient.) ...

As inventor Anton Willis points out, there have been collapsible kayaks before, but they weren't foldable and weren't cheap. (You can preorder his on Kickstarter for a relatively reasonable $800).

The collapsed state of the canoe is significantly larger and heavier than the Oru kayak, but then again, it’s quite a bit more robust and larger once built out—rated to carry more than 800 pounds.