1. Compact and portable foldable design: this kayak sail folds to a compact folded diameter of 38 cm (14.96 inches) and opens to an extended diameter of 108 cm (42.52 inches, providing ample sail area when deployed). This design makes it easy to carry on long journeys. 2. Practical half zipper design: the half zip function of the outdoor kayak canoe surfboard sail allows easy access and handling, improving installation and removal convenience for the user. 3. Waterproof material: made of umbrella fabric, this kayak wind sail is designed to withstand water exposure and ensure durability and reliability in various weather conditions. 4. Wide application: suitable for use with kayaks, inflatable boats, canoes and more. Its easy setup enables quick use on different watercraft. 5. Use scenarios: - Quick propulsion boost during day trips on lakes or coastal waters when wind is favorable. - Ready-to-deploy wind support for longer journeys that require lightweight and compact gear. - wind assistance for inflatable boats, canoes, or kayaks in changing weather conditions.