The only of its kind, the Torsion Spring Technology (TST) concept is to create a one-piece hull where the left side talks to the right side with dynamic flex, and without losing kinetic energy from the wave.
The WPC (Waterproof Core) is a special developed blank that is waterproof, stronger and lighter than PU. The blank does not take in water, so if you get a ding you don't have to worry about ending your session.
As the board is stringerless, it removes the two-dimensional restriction to deliver on that engineered flex. It lets one rail communicate to the other when you are turning or when you are snapping off the lip.