Performance Posture 3 for pelvic rotation with a balance of comfort and efficiency;Hollow Ti rails increase compliance for ultimate comfort;Wider cutout and shaped nose yield stable comfort in an aggressive position;Women Specific Design is engineered to yield better fit and comfort for women;Recessed saddle cavity provides contour relief zone and eases pressure on soft tissue;Size Specific Curvature ensures each saddle is designed specific to its width;Carbon fiber-reinforced shell strikes a balance between strength and light weight;