The WindPaddle Cruiser Sail is a self-launching, self-standing sail designed primarily for canoes and tandem kayaks / boaters. The Cruiser keeps all of the lightweight ease-of-use features of the WindPaddle Adventure Sail but cranks the power up a few notches for the heavier boats. It has a 50% larger sail area than the Adventure Model. The WindHarness (patent pending) allows you to quickly attach your WindPaddle onto any boat or switch between boats in seconds. If your boat has anything that can be clipped to - including deck lines, cleats, bungees, pad eyes, fairleads, thwarts, handholds on the gunwale or bench seat - you can probably attach your WindPaddle to it! Deployed diameter - 56" (142.24 cm.). Coiled/folded diameter - 20" (50 cm.). Sail area - 17.1 sq. ft. (1.589 m²)