JSail’s offer is now extended with the 420 sail set. Our 420 sails have been created based on our thorough experience with Optimist sails as well as with 3D sail measurement technology. The crosscut type allows the full control of the sail shape during the production process and accounts for the optimum leech shape. The set is easy to trim and is designed for light and mid-weight crews. Please e-mail us with your possible enquiries regarding any additional information you might need.