3D Printed sails?

North Shore is working on making sails for sailboats by 3D printing them.

https://northsails.com/sailing/en/innovation/3di-technology?fbclid=IwAR2IHenOvLlu7EsEghqI1dLIfmyFQFtPqgWFngqAU0nswBDl5Y1x48xCEjQ