It's the concept behind the Kewl that is so.
.. cool: Design a kayak especially for lighter paddlers who don't want to push around a boat designed for people twice their weight. The Kewl moves from the eddy to the wave effortlessly, correcting easily on the way out, and surfing with the nose far above the trough. It tracks well, spins on a dime, and rolls super-easy. And it's no slouch: it took 5th and 7th place at the 1997 world rodeo championships in C1.
The Kewl was designed using conventional design principles for a familiar feel.