Lighter, slimmer and more elegant than ever, the Fi'zi:k Arione CX K:ium Saddle features a new lightweight foam, yielding a 20g weight reduction from the standard Arione. Wing Flex shell flexes where the inner thigh contacts the saddle to enhance pedaling efficiency. Breathable Microtex cover puts you in an ideal cycling position while the Thigh Glides guide you into a pedaling form that's easier and more comfortable. K:ium rails are lighter, stronger and provide better vibration damping than titanium. Available now at Performance Bicycle.