The development of the MYSTIC LEN10 Majestic X waist harness aimed at a new level of support, comfort and a first-class finish. The harness surrounds the patented Bionic Core Frame a semi-rigid carbon back-support plate with a very stiff middle section. It prevents the ­harness from jamming the upper body while reducing the pressure on the back. At the same time, it allows rotation for maximum freedom of movement.