Developed with two-time Marathon World Champion, Alban Lakata, the SMR3 is used by the Topeak-Ergon Racing team for marathon and endurance racing. It features a tuned shell with increased flex, all the while still offering great stability. This translates to more freedom of movement for the thighs while pedaling. The saddle shell geometry and contours have been optimized to work with the rider. Innovative padding comes from the latest AirCell technology with micro air pockets for increased rebound, support, and damping.