It all started from an analysis of the advantages and disadvantages of current harness technologies, regarding in particular the softshell (the classic flexible harness) and the hardshell (the rigid shell harness): The Softshell: The softshell provides perfect adaptability to the user's body type and movements. But it becomes distorted under the pressure of the kite: The user's sides are compressed.It therefore has good adaptability, but little hold. The Hardshell: The hardshell does not become distorted under the pressure of the kite: The user's sides are not compressed. But it has no adaptability to the user's body type and movements. It therefore has a very good hold, but little adaptability. By separating the functions of "effort management" and "comfort", we have created a harness that adapts perfectly to your body type and your movements, while offering unparalleled support. Key Features: Adaptive skin Hardshell Softshell Arc spreaderbar