Adhoc Folding Canoe
"Designer Ori Levin, of Tsor Design in Israel, created this folding canoe, which he calls Adhoc, out of aramid (a component of both body armor fabric and bike tires) stretched on a carbon fiber frame. According to Levin, the whole kit and caboodle weighs just 4.1 kilograms (9 pounds), fits in a bag measuring just 13 by 23 by 70 centimeters (5 by 9 by 28 inches), and sets up in five minutes.
(Derek Markham, Aug 8, 2011, Discovery news)
First feasibility study
Second feasibility study