A high modulus seat harness for high power applications. It has a medium profile with molded upper that carries the kite load. It has solid spreader bar stability through the use of our double buckle system. These double buckles combined with the molded back support allows a big adjustment of where the power from the kite can be directed into the harness body. True 3D seat shaping Elastic closure belt Allround optimized outline profile Molded outside construction MPL quad belt attachment Patented pin-release PLT bar system Molded slide-in Barpad for no ride-up Neoprene cushioned legstraps Internal load plate Back support control system