Performance Posture 3 for pelvic rotation with a balance of comfort and efficiency;The unique suspended rail construction increases compliance for ultimate comfort;Strategically placed, multi-density padding for optimal comfort and performance;The recessed saddle cavity provides a contour relief zone and eases pressure on soft tissue;Size-Specific Curvature ensures that each saddle is designed specific to its width;Hollow titanium rails deliver strength without added weight;The carbon fibre-reinforced shell strikes a balance between strength and a light weight;