Short and compact ergonomic saddle shape complements modern mountain bike geometry \n Larger relief channel with graded midsaddle contours \n Gentle inner thigh contours improve leg mobility with reduced snagging on saddle nose \n Extra support and relief in an upright trail riding position \n Full focus on preventing pressure, pain and numbness \n SMS Pro: Carbon composite shell with Reactive Performance foam \n SMS Comp: Nylon composite shell with orthopedic comfort foam \n SMS Sport: Nylon composite shell with orthopedic comfort foam \n Recommended sizing for sit bone width: S/M 912cm, M/L 1216cm