BROADEN YOUR HORIZONS with Kayak Sailing.Our sails are made from the highest quality of material available on the market and are manufactured by OWEN SAILS in the U.K. one of the most highly respected Sail Makers in Europe for their quality.We gave Owen Sails a rough design of what we required for a Kayak Sail, they came up with a design different in cut and shape to all others on the market which is perfect for Kayak Sailing. Since then we have had amazing feedback from customers on the performance of the sails. Dr. Douglas Wilcox conducted extensive tests on the sail before we went into production and was also very impressed with the performance in light winds force 2/3 and also in force 5. His report can be found by clicking on this link, https://seakayakphoto.blogspot.com/2021/05/kcs-ky-pro-sail-system-test-and-review.htmlLong term independent tests show our quality and performance is far superior to other makes.