What is 3Di? North Windsurfing explains

Sparked by decades of innovation under North Sails, we've brought unique 3Di technology to the windsurfing arena. Learn more: https://northwindsurfing.com/pages/3di The skin of the sail is the base of everything. This is where our 3Di technique comes into play. 3Di is built up from 5 sub features which are all incorporated and executed in one single production system. This allows us to create a three-dimensionally shaped sail from one single piece instead of the conventional sections cloth panels from batten to batten or panel to panel. By gradually changing fiber density throughout the skin we made sure load and impact requirements are being met. This is the result of shaping the entire skin of the sail in 3D, eliminating the limitation of shaping under battens, which leaves you with the only windsurfing sail on the market that has a 100% shaped surface. If this hasn’t gotten you excited yet, keep in mind that 3Di is used in making sails for the Ocean Race and the America’s Cup.