Designed with body geometry specialists doctors and engineers the sitero pro is the best fitting saddle for the aerodynamic position best in class fit zonal design and integrated storage make this the ultimate triathlon and tt saddlenext level comfort for riders of all sizes while in the aero positiontriple density padding for comfort on longer ridesultra light and strong oversized fact carbon railshigh frequency welded cover material for secure hold and a smooth pedal strokeintegrated ho