Ergonomic MTB saddle designed specifically around the female pelvis Forward positioned and anatomically adapted pressure relief channel prevents discomfort and numbness Flat top saddle with comfortably padded sit zone Short saddle nose for greater freedom of movement on the bike SM Sport Gel: Nylon composite shell with orthopedic comfort foam with gel inserts for optimum pressure relief SM: Nylon composite shell with orthopedic comfort foam padding Recommended sizing for sit bone width: S/M 912cm, M/L 12-16cm