Short and compact ergonomic saddle shape complements modern road 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 endurance riding position \n Full focus on preventing pressure, pain and numbness \n SRS Pro Carbon: Carbon composite shell with Reactive Performance foam \n SRS Pro: Carbon composite shell with Reactive Performance foam \n SRS Comp: Nylon composite shell with orthopedic comfort foam \n Recommended sizing for sit bone width: S/M 912cm, M/L 1216cm