Posture 3 Performance pelvic rotation for a balance of comfort and efficiency;Soft cushion padding through the saddle nose enhancing soft tissue protection;Strategically placed, multi-density padding for optimal comfort and performance;Channel Flex on the bottom of the shell for added compliance;The recessed saddle cavity provides a contour relief zone and eases pressure on soft tissue;inForm BioDynamic products optimise your natural movement for sustained, higher performance;