Compared to woven polyester sails, Quantum’s Fusion M™ membrane sails provide significantly better shape when new and dramatically improved shape life over the long haul. Membrane sails can have two to three times the shape life of a standard woven sail. The result is a sail that is easier to trim, controls helm and heel, provides superior reefing, points higher, and is faster on every point of sail. That means more fun sailing! Fusion M™ sails are made using the most technically advanced design, lamination, and shaping methods in the industry—a process known as iQ® Technology. For an inside look, check out this short iQ video.