The new DSD+ Mainsail is another step forward in North Sails goal to make the fastest sails possible. The latest sail design incorporates a slight luff curve modification to induce shape and power down low, and clean up some of the larger overbend wrinkles that existed in the previous version. This main is very popular with sailors on inland lakes who sail in flatter water, though it has had great success on open water as well. The DSD mainsail is built out of 165sq from Dimension/Polyant that proves to be very durable, while the finish keeps the leech nice and straight through all conditions. With a radial lower section, the lower leech stays static as the mast bend is adjusted to match the conditions.