Performance Posture 3 for pelvic rotation with a balance of comfort and efficiency. Hollow Chromoly rails increase compliance for ultimate comfort. A wider cutout and shaped nose provide a stable comfort in an aggressive position. The Women-Specific Design is engineered to yield better fit and comfort for women. 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. Nylon composite shell.